English-Thai Dictionary

rational

ADJ ซึ่ง มีเหตุผล  รู้จัก เหตุผล  เข้าใจ เหตุผล  logical reasonable sueng-me-hed-pon

 

rationale

N คำชี้แจง เหตุผล  พื้นฐาน ของ เหตุผล  ground reason why kam-che-jang-hed-pon

 

rationalisation

N การ ใช้ เหตุผล ตัดสิน  explanation justification kan-chai-hed-pontad-sin

 

rationalise

VT ใช้ เหตุผล ตัดสิน  explain justify chi-hed-pon-tad-sin

 

rationalism

N หลัก ความเชื่อ ใน เรื่อง เหตุผล  realism reasoning logic lak-kwam-chue-nai-ruang

 

rationality

N ความ มีเหตุผล  ความ มีสติ  sanity reasonableness insanity madness kwam-me-hed-pon

 

rationalization

N การ ใช้ เหตุผล ตัดสิน  explanation justification kan-chai-hed-pontad-sin

 

rationalize

VT ใช้ เหตุผล ตัดสิน  explain justify chi-hed-pon-tad-sin

 

rationalizer

N ผู้ใช้ เหตุผล ตัดสิน  phu-chi-hed-pon-tad-sin

 

Webster's 1828 Dictionary

RATIONAL

a.[L. rationalis.] 1. Having reason or the faculty of reasoning; endowed with reason; opposed to irrational; as, man is a rational being; brutes are not rational animals.
It is our glory and happiness to have a rational nature.
2. Agreeable to reason; opposed to absurd; as a rational conclusion or inference; rational conduct.
3. Agreeable to reason; not extravagant.
4. Acting in conformity to reason; wise; judicious; as a rational man.

 

RATIONAL

n.A rational being.

 

RATIONALE

n. 1. A detail with reasons; a series of reasons assigned; as Dr. Sparrow's rationale of the Common Prayer.
2. An account or solution of the principles of some opinion, action, hypothesis, phenomenon, etc.

 

RATIONALIST

n.One who proceeds in his disquisitions and practice wholly upon reason.

 

RATIONALITY

n. 1. The power of reasoning.
God has made rationality the common portion of mankind.
2. Reasonableness.
Well directed intentions, whose rationalities will not bear a rigid examination.

 

RATIONALLY

adv. In consistency with reason; reasonably. We rationally expect every man will pursue his own happiness.

 

RATIONALNESS

n.The state of being rational or consistent with reason.

 

Webster's 1913 Dictionary

RATIONAL

Ra "tion *al, a. Etym: [L. rationalis: cf. F. rationnel. See Ratio, Reason, and cf. Rationale. ]

 

1. Relating to reason; not physical; mental. Moral philosophy was his chiefest end; for the rational, the natural, and mathematics. .. were but simple pastimes in comparison of the other. Sir T. North.

 

2. Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning. It is our glory and happiness to have a rational nature. Law.

 

3. Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man.

 

4. (Chem. )

 

Defn: Expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulæ. See under Formula. Rational horizon. (Astron.) See Horizon, 2 (b ). -- Rational quantity (Alg. ), one that can be expressed without the use of a radical sign, or in extract parts of unity; -- opposed to irrational or radical quantity. -- Rational symptom (Med. ), one elicited by the statements of the patient himself and not as the result of a physical examination.

 

Syn. -- Sane; sound; intelligent; reasonable; sensible; wise; discreet; judicious. -- Rational, reasonable. Rational has reference to reason as a faculty of the mind, and is opposed to traditional; as, a rational being, a rational state of mind, rational views, etc. In these cases the speculative reason is more particularly, referred to. Reasonable has reference to the exercise of this faculty for practical purposes,and means, governed or directed by reason; as, reasonable prospect of success. What higher in her society thou find'st Attractive, human, rational, love still. Milton. A law may be reasonable in itself, although a man does not allow it, or does not know the reason of the lawgivers. Swift.

 

RATIONAL

RATIONAL Ra "tion *al, n.

 

Defn: A rational being. Young.

 

RATIONALE

Ra `tion *a "le, n. Etym: [L. rationalis, neut. rationale. See Rational, a.]

 

Defn: An explanation or exposition of the principles of some opinion, action, hypothesis, phenomenon, or like; also, the principles themselves.

 

RATIONALISM

Ra "tion *al *ism, n. Etym: [Cf. F. rationalisme.]

 

1. (Theol.)

 

Defn: The doctrine or system of those who deduce their religious opinions from reason or the understanding, as distinct from, or opposed to, revelation.

 

2. (Philos.)

 

Defn: The system that makes rational power the ultimate test of truth; -- opposed to sensualism, or sensationalism, and empiricism. Fleming.

 

RATIONALIST

Ra "tion *al *ist, n. Etym: [Cf. F. rationaliste.]

 

Defn: One who accepts rationalism as a theory or system; also, disparagingly, a false reasoner. See Citation under Reasonist.

 

RATIONALISTIC; RATIONALISTICAL

RATIONALISTIC; RATIONALISTICAL Ra `tion *al *is "tic, Ra `tion *al *is "tic *al a.

 

Defn: Belonging to, or in accordance with, the principles of rationalism. -- Ra `tion *al *is "tic *al *ly, adv.

 

RATIONALITY

Ra `tion *al "i *ty, n.; pl. -ties. Etym: [F. rationalité, or L.rationalitas.]

 

Defn: The quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness. When God has made rationality the common portion of mankind, how came it to be thy inclosure Gov. of Tongue. Well-directed intentions, whose rationalities will never bear a rigid examination. Sir T. Browne.

 

RATIONALIZATION

RATIONALIZATION Ra `tion *al *i *za "tion, n.

 

Defn: The act or process of rationalizing.

 

RATIONALIZE

RATIONALIZE Ra "tion *al *ize, v. t.

 

1. To make rational; also, to convert to rationalism.

 

2. To interpret in the manner of a rationalist.

 

3. To form a rational conception of.

 

4. (Alg. )

 

Defn: To render rational; to free from radical signs or quantities.

 

RATIONALIZE

RATIONALIZE Ra "tion *al *ize, v. i.

 

Defn: To use, and rely on, reason in forming a theory, belief, etc. , especially in matters of religion: to accord with the principles of rationalism. Theodore. .. is just considered the chief rationalizing doctor of antiquity. J. H. Newman.

 

RATIONALLY

RATIONALLY Ra "tion *al *ly, adv.

 

Defn: In a rational manner.

 

RATIONALNESS

RATIONALNESS Ra "tion *al *ness, n.

 

Defn: The quality or state of being rational; rationality.

 

New American Oxford Dictionary

rational

ra tion al |ˈraSHənl, ˈraSHnəl ˈræʃnəl | ▶adjective 1 based on or in accordance with reason or logic: I'm sure there's a perfectly rational explanation. • (of a person ) able to think clearly, sensibly, and logically: Andrea's upset —she's not being very rational. • endowed with the capacity to reason: man is a rational being. 2 Mathematics (of a number, quantity, or expression ) expressible, or containing quantities that are expressible, as a ratio of whole numbers. When expressed as a decimal, a rational number has a finite or recurring expansion. ▶noun Mathematics a rational number. DERIVATIVES ra tion al i ty |ˌraSHəˈnalətē |noun, ra tion al ly |ˈraSHənl -ē, ˈraSHnəlē |adverb ORIGIN late Middle English (in the sense ‘having the ability to reason ’): from Latin rationalis, from ratio (n- ) ‘reckoning, reason ’ (see ratio ).

 

rational dress

ra |tion ¦al dress ▶noun [ mass noun ] a style of women's dress introduced in the late 19th century, characterized by the wearing of knickerbockers or bloomers in place of a skirt.

 

rationale

ra tion ale |ˌraSHəˈnal ˌræʃəˈnæl | ▶noun a set of reasons or a logical basis for a course of action or a particular belief: he explained the rationale behind the change. ORIGIN mid 17th cent.: modern Latin, neuter (used as a noun ) of Latin rationalis ‘endowed with reason ’ (see rational ).

 

rational expectations hypothesis

ra tion al ex pec ta tions hy poth e sis ▶noun Economics the hypothesis that an economic agent will make full use of all available information when forming expectations, esp. with regard to inflation, and not just past values of a particular variable. Compare with adaptive expectations hypothesis.

 

rationalism

ra tion al ism |ˈraSHənlˌizəm, ˈraSHnəˌlizəm ˈræʃnəˌlɪzəm | ▶noun a belief or theory that opinions and actions should be based on reason and knowledge rather than on religious belief or emotional response: scientific rationalism. • Philosophy the theory that reason rather than experience is the foundation of certainty in knowledge. • Theology the practice of treating reason as the ultimate authority in religion. DERIVATIVES ra tion al ist noun, ra tion al is tic |ˌraSHənlˈistik, ˌraSHnəˈlistik |adjective, ra tion al is ti cal ly |ˌraSHənlˈistik (ə )lē, ˌraSHnəˈlistik (ə )lē |adverb

 

rationalize

ra tion al ize |ˈraSHənlˌīz, ˈraSHnəˌlīz ˈræʃnəˌlaɪz | ▶verb [ with obj. ] 1 attempt to explain or justify (one's own or another's behavior or attitude ) with logical, plausible reasons, even if these are not true or appropriate: she couldn't rationalize her urge to return to the cottage. 2 make (a company, process, or industry ) more efficient by reorganizing it in such a way as to dispense with unnecessary personnel or equipment: his success was due primarily to his ability to rationalize production. 3 Mathematics convert (a function or expression ) to a rational form. DERIVATIVES ra tion al i za tion |ˌraSHənl -əˈzāSHən, ˌraSHnələ - |noun, ra tion al iz er noun

 

Oxford Dictionary

rational

ra |tion ¦al |ˈraʃ (ə )n (ə )l | ▶adjective 1 based on or in accordance with reason or logic: I'm sure there's a perfectly rational explanation. • able to think sensibly or logically: Ursula's upset —she's not being very rational. • endowed with the capacity to reason: man is a rational being. 2 Mathematics (of a number, quantity, or expression ) expressible, or containing quantities which are expressible, as a ratio of whole numbers. DERIVATIVES rationality |-ˈnalɪti |noun, rationally adverb ORIGIN late Middle English (in the sense ‘having the ability to reason ’): from Latin rationalis, from ratio (n- )‘reckoning, reason ’ (see ratio ).

 

rational dress

ra |tion ¦al dress ▶noun [ mass noun ] a style of women's dress introduced in the late 19th century, characterized by the wearing of knickerbockers or bloomers in place of a skirt.

 

rationale

rationale |ˌraʃəˈnɑːl | ▶noun a set of reasons or a logical basis for a course of action or belief: he explained the rationale behind the change. ORIGIN mid 17th cent.: modern Latin, neuter (used as a noun ) of Latin rationalis ‘endowed with reason ’ (see rational ).

 

rational expectations hypothesis

ra |tion ¦al ex ¦pect |ations hy ¦poth |esis ▶noun Economics the hypothesis that an economic agent will make full use of all available information when forming expectations, especially with regard to inflation, and not just past values of a particular variable. Compare with adaptive expectations hypothesis.

 

rationalism

ra ¦tion ¦al |ism |ˈraʃ (ə )n (ə )lɪz (ə )m | ▶noun [ mass noun ] the practice or principle of basing opinions and actions on reason and knowledge rather than on religious belief or emotional response: scientific rationalism. • Philosophy the theory that reason rather than experience is the foundation of certainty in knowledge. • Theology the practice of treating reason as the ultimate authority in religion. DERIVATIVES rationalist noun, rationalistic |-ˈlɪstɪk |adjective, rationalistically |-ˈlɪstɪk (ə )li |adverb

 

rationalize

rationalize |ˈraʃ (ə )n (ə )lʌɪz |(also rationalise ) ▶verb [ with obj. ] 1 attempt to explain or justify (behaviour or an attitude ) with logical reasons, even if these are not appropriate: she couldn't rationalize her urge to return to the cottage. 2 Brit. make (a company, process, or industry ) more efficient, especially by dispensing with superfluous personnel or equipment: if we rationalize production, will that mean redundancies? • reorganize (a process or system ) so as to make it more logical and consistent: Parliament should seek to rationalize the country's court structure. 3 Mathematics convert (a function or expression ) to a rational form. DERIVATIVES rationalization |-ˈzeɪʃ (ə )n |noun, rationalizer noun

 

American Oxford Thesaurus

rational

rational adjective 1 a rational approach: logical, reasoned, sensible, reasonable, cogent, intelligent, judicious, shrewd, common-sense, commonsensical, sound, prudent; down-to-earth, practical, pragmatic. ANTONYMS illogical. 2 she was not rational at the time of signing: sane, compos mentis, in one's right mind, of sound mind; normal, balanced, grounded, lucid, coherent; informal all there. ANTONYMS insane. 3 humans are rational beings: intelligent, thinking, reasoning; cerebral, logical, analytical; formal ratiocinative.

 

rationale

rationale noun the rationale for offering wireless access was simple: reason (s ), reasoning, thinking, logic, grounds, sense; principle, theory, argument, case; motive, motivation, explanation, justification, excuse; the whys and wherefores.

 

rationalize

rationalize verb 1 he tried to rationalize his behavior: justify, explain, explain away, account for, defend, vindicate, excuse. 2 an attempt to rationalize the industry: streamline, reorganize, modernize, update; trim, hone, simplify, downsize, prune.

 

Oxford Thesaurus

rational

rational adjective 1 a rational approach to the problem: logical, reasoned, well reasoned, sensible, reasonable, cogent, coherent, intelligent, wise, judicious, sagacious, astute, shrewd, perceptive, enlightened, clear-eyed, clear-sighted, commonsensical, common-sense, well advised, well grounded, sound, sober, prudent, circumspect, politic; down-to-earth, practical, pragmatic, matter-of-fact, hard-headed, with both one's feet on the ground, unidealistic; informal joined-up. ANTONYMS irrational, illogical. 2 she was not fully rational at the time of signing the agreement: lucid, coherent, sane, in one's right mind, able to think /reason clearly, of sound mind, in possession of all one's faculties; normal, balanced, well balanced, clear-headed; Latin compos mentis; informal all there. ANTONYMS insane. 3 man is a self-conscious, rational being: intelligent, thinking, discriminating, reasoning; cognitive, mental, cerebral, logical, analytical, conceptual; rare ratiocinative.

 

rationale

rationale noun the government's rationale for introducing such radical legislation: reason (s ), reasoning, thinking, (logical ) basis, logic, grounds, sense; principle, theory, philosophy, hypothesis, thesis, argument, case; motive, motivation, the whys and wherefores, explanation, justification, excuse, vindication; French raison d'être.

 

rationalize

rationalize verb 1 as soon as Mary had gone he began to rationalize his behaviour: justify, explain (away ), account for, defend, vindicate, excuse, make excuses for, make allowances for, give an explanation for, provide a rationale for, make acceptable; rare extenuate. 2 they embarked on a series of attempts to rationalize the industry: streamline, make more efficient, improve the running of, trim, slim down, hone, make economies in, reduce wastage in, simplify; make cutbacks in, cut back on, prune, retrench on; reorganize, modernize, update. 3 Parliament should seek to rationalize the country's court structure: reorganize; clarify, make consistent, apply logic /reasoning to; rare pragmatize.

 

Duden Dictionary

rational

ra ti o nal Adjektiv bildungssprachlich |ration a l |lateinisch rationalis, zu: ratio, Ratio a die Vernunft betreffend, von der Vernunft bestimmt eine rationale Auffassung, Betrachtung, Einstellung | das rationale Denken | der Mensch als rationales Wesen | etwas rational erklären, begründen | rationale Zahlen (Mathematik Zahlen, die sich durch Brüche ganzer Zahlen ausdrücken lassen )b vernünftig, [überlegt und ] sinnvoll der Verband, Betrieb war rational organisiert

 

Rationale

Ra ti o na le Substantiv, Neutrum , das |Ration a le |das Rationale; Genitiv: des Rationale auszeichnender liturgischer Schulterschmuck einiger katholischer Bischöfe (z. B. Paderborn, Eichstätt ) nach dem Vorbild des Brustschildes der israelitischen Hohen Priester

 

Rationalisator

Ra ti o na li sa tor Substantiv, maskulin DDR , der |Rationalis a tor |der Rationalisator; Genitiv: des Rationalisators, Plural: die Rationalisatoren lateinisch-neulateinisch Angestellter eines Betriebs, der mit der Durchführung einer Rationalisierung 1 betraut ist

 

Rationalisatorin

Ra ti o na li sa to rin Substantiv, feminin DDR , die |Rationalisat o rin |die Rationalisatorin; Genitiv: der Rationalisatorin, Plural: die Rationalisatorinnen weibliche Form zu Rationalisator

 

rationalisieren

ra ti o na li sie ren schwaches Verb |rationalis ie ren |schwaches Verb; Perfektbildung mit »hat « nach französisch rationaliser = vernünftig denken, zu: rationnel, rationell 1 a vernünftig, zweckmäßig gestalten; straffen Forschungsmethoden, die Haushaltsarbeit rationalisieren b (im Bereich der Wirtschaft und Verwaltung ) Arbeitsabläufe zur Steigerung der Leistung und Senkung des Aufwands durch Technisierung, Automatisierung, Arbeitsteilung u. a. wirtschaftlicher gestalten der Betrieb musste rationalisieren 2 Tiefenpsychologie emotionales Verhalten o. Ä. nachträglich verstandesmäßig zu erklären und zu rechtfertigen versuchen

 

Rationalisierung

Ra ti o na li sie rung Substantiv, feminin , die |Rationalis ie rung |die Rationalisierung; Genitiv: der Rationalisierung, Plural: die Rationalisierungen das Rationalisieren

 

Rationalisierungsmaßnahme

Ra ti o na li sie rungs maß nah me Substantiv, feminin , die |Rationalis ie rungsmaßnahme |dem Rationalisieren 1b dienende Maßnahme

 

Rationalismus

Ra ti o na lis mus Substantiv, maskulin , der |Rational i smus |der Rationalismus; Genitiv: des Rationalismus 1 Philosophie erkenntnistheoretische Richtung, die allein das rationale Denken als Erkenntnisquelle zulässt 2 bildungssprachlich vom Rationalismus 1 geprägte Art

 

Rationalist

Ra ti o na list Substantiv, maskulin , der |Rational i st |der Rationalist; Genitiv: des Rationalisten, Plural: die Rationalisten 1 Philosophie Vertreter des Rationalismus 1 2 bildungssprachlich jemand, bei dem das rationale Denken den Vorrang hat

 

Rationalistin

Ra ti o na lis tin Substantiv, feminin , die |Rational i stin |weibliche Form zu Rationalist

 

rationalistisch

ra ti o na lis tisch Adjektiv |rational i stisch |1 Philosophie den Rationalismus 1 betreffend, dazu gehörend, davon bestimmt, geprägt Positivismus und historischer Materialismus sind rationalistische Denkrichtungen 2 bildungssprachlich vom rationalen Denken bestimmt, daran orientiert eine rationalistische Architektur

 

Rationalität

Ra ti o na li tät Substantiv, feminin , die |Rationalit ä t |die Rationalität; Genitiv: der Rationalität, Plural: die Rationalitäten mittellateinisch rationalitas = Denkvermögen 1 bildungssprachlich rationales b Wesen einer Sache 2 a bildungssprachlich Ausprägung der menschlichen Vernunft; Denkart a b Psychologie auf Einsicht gegründetes Verhalten 3 Mathematik Eigenschaft von Zahlen, sich als Bruch darstellen zu lassen

 

French Dictionary

rationalisation

rationalisation n. f. nom féminin Action de rationaliser quelque chose. Note Orthographique ratio n alisation.

 

rationaliser

rationaliser v. tr. verbe transitif 1 Rendre rationnel. : Il importe de rationaliser les critères décisionnels. 2 Organiser une activité économique afin d ’en accroître l ’efficacité au maximum. : Rationaliser la production d ’un bien. aimer Note Orthographique ratio n aliser.

 

rationalité

rationalité n. f. nom féminin Caractère de ce qui est rationnel, conforme à ce qui est raisonnable. Note Orthographique ratio n alité.

 

Sanseido Wisdom Dictionary

rational

ra tion al /rǽʃ (ə )n (ə )l /〖ratio (n )(計算 )al (の )〗形容詞 more ～; most ～1 〖通例 名詞 の前で 〗(感情に左右されない )理にかなった , 合理的な 〈思考 行動など 〉(↔irrational ) (!reasonableよりかたい語 ) ▸ a rational decision [thought ]理にかなった決定 [思考 ]2 〈人が 〉 (感情に左右されず )理性のある , 明晰 （せき ）な , 分別のある (↔irrational ).3 〘数 〙有理 (数 )の, 整数比で表せる .名詞 C 〘数 〙有理数 (rational number ).

 

rationale

ra tion ale /ræ̀ʃənǽl |-nɑ́ːl /名詞 C ｟かたく ｠〖通例単数形で 〗 «…の /…を支える » (行動 信条の )基本原則, 根本原理, 理論的根拠 «for /behind » .

 

rationalism

r á tion al ì sm 名詞 U 〘哲 〙合理主義, 理性主義 .

 

rationalist

r á tion al ist 名詞 C 形容詞 合理主義者 (の ), 理性主義者 (の ).r à tion al í s tic /-tɪk /形容詞 r à tion al í s ti cal ly 副詞

 

rationality

ra tion al i ty /ræ̀ʃənǽləti /名詞 U (行動 思考などの )合理性, 純理性 ; 良識 .

 

rationalization

r à tion al i z á tion 名詞 U 1 正当化, 無理な理屈づけ, 自己弁護 .2 (組織などの )合理化 .3 〘数 〙有理化 .

 

rationalize

r á tion al ì ze 動詞 他動詞 1 〈不当な行動 思考 〉を合理的 [無理 ]に説明する, 正当化する (away ).2 ｟主に英 ｠〖通例 be ～d 〗〈組織 業界が 〉 (人員削減 設備縮小により )合理化される .3 〘数 〙…を有理化する .自動詞 1 〈自分の行動を 〉合理的に説明 [正当化 ]する .2 合理 (主義 )的に考える .r á tion al ì z er 名詞

 

rationally

r á tion al ly 副詞 〖通例 動詞 と共に 〗〈行動 思考が 〉合理的に, 理にかなって (↔irrationally ).