English-Thai Dictionary

irrational

ADJ ไม่มีเหตุผล  ปราศจาก เหตุผล  unreasonable absurd illogical rational logical mai-me-hod-pon

 

irrational number

N จำนวนอตรรกยะ  จำนวน ที่ ไม่ลงตัว  jam-nuan-a-tak-ka-ra-ya

 

irrationality

N ความ ไม่มีเหตุผล  การกระทำ หรือ ความคิด ที่ ปราศจาก เหตุผล  kwam-mai-me-hed-pon

 

irrationally

ADV อย่าง ไร้เหตุผล  อย่างไร้ สติ  อย่าง ไม่ลงตัว (ทางค ณิตศาสตร์ 

 

Webster's 1828 Dictionary

IRRATIONAL

a.[L. irrationalis; in and rationalis, from ratio. ] 1. Not rational; void of reason or understanding. Brutes are irrational animals.
2. Not according to the dictates of reason; contrary to reason; absurd. To pursue a course of life which destroys happiness, is irrational.

 

IRRATIONALITY

n.Want of reason or the powers of understanding.

 

IRRATIONALLY

adv. Without reason; in a manner contrary to reason; absurdly.

 

Webster's 1913 Dictionary

IRRATIONAL

Ir *ra "tion *al, a. Etym: [L. irrationalis: cf. F. irrationnel. See In- not, and Rational. ]

 

1. Not rational; void of reason or understanding; as, brutes are irrational animals.

 

2. Not according to reason; absurd; foolish. It seemed utterly irrational any longer to maintain it. I. Taylor.

 

3. (Math. )

 

Defn: Not capable of being exactly expressed by an integral number, or by a vulgar fraction; surd; -- said especially of roots. See Surd.

 

Syn. -- Absurd; foolish; preposterous; unreasonable; senseless. See Absurd.

 

IRRATIONALITY

IRRATIONALITY Ir *ra `tion *al "i *ty, n.

 

Defn: The quality or state of being irrational. "Brutish irrationaliity." South.

 

IRRATIONALLY

IRRATIONALLY Ir *ra "tion *al *ly, adv.

 

Defn: In an irrational manner. Boyle.

 

IRRATIONALNESS

IRRATIONALNESS Ir *ra "tion *al *ness, n.

 

Defn: Irrationality.

 

New American Oxford Dictionary

irrational

ir ra tion al |iˈraSHənl ɪ (r )ˈræʃənl | ▶adjective 1 not logical or reasonable. • not endowed with the power of reason. 2 Mathematics (of a number, quantity, or expression ) not expressible as a ratio of two integers, and having an infinite and nonrecurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2. ▶noun Mathematics an irrational number. DERIVATIVES ir ra tion al i ty |iˌraSHəˈnalitē |noun, ir ra tion al ize |-ˌīz |verb, ir ra tion al ly adverb ORIGIN late Middle English: from Latin irrationalis, from in- ‘not ’ + rationalis (see rational ).

 

irrationalism

ir ra tion al ism |iˈraSHənlˌizəm ɪˈræʃənlˌɪzəm | ▶noun a system of belief or action that disregards or contradicts rational principles. DERIVATIVES ir ra tion al ist noun & adjective

 

Oxford Dictionary

irrational

ir |ration ¦al |ɪˈraʃ (ə )n (ə )l | ▶adjective 1 not logical or reasonable: irrational feelings of hostility. • not endowed with the power of reason. 2 Mathematics (of a number, quantity, or expression ) not expressible as a ratio of two integers, and having an infinite and non-recurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2. ▶noun Mathematics an irrational number or quantity; a surd. DERIVATIVES irrationality |-ˈnalɪti |noun, irrationalize (also irrationalise ) verb, irrationally adverb ORIGIN late Middle English: from Latin irrationalis, from in- ‘not ’ + rationalis (see rational ).

 

irrationalism

ir ¦ration ¦al |ism |ɪˈraʃ (ə )n (ə )lɪz (ə )m | ▶noun [ mass noun ] a system of belief or action that disregards or contradicts rational principles. DERIVATIVES irrationalist noun & adjective

 

American Oxford Thesaurus

irrational

irrational adjective an irrational fear of insects: unreasonable, illogical, groundless, baseless, unfounded, unjustifiable; absurd, ridiculous, ludicrous, preposterous, silly, foolish, senseless. ANTONYMS reasonable, logical.

 

Oxford Thesaurus

irrational

irrational adjective she told herself that it was an irrational fear: unreasonable, illogical, groundless, baseless, unfounded, unjustifiable, unsound; absurd, ridiculous, ludicrous, silly, foolish, senseless, nonsensical, laughable, idiotic, stupid, wild; untenable, implausible, unscientific, arbitrary; informal crazy, mad; Brit. informal barmy, daft. ANTONYMS rational, logical.

 

Duden Dictionary

irrational

ir ra ti o nal Adjektiv bildungssprachlich |i rrational auch …ˈnaːl |lateinisch irrationalis = unvernünftig, zu lateinisch in- = un-, nicht und rationalis, rational a mit der Ratio, dem Verstand nicht fassbar; dem logischen Denken nicht zugänglich ein irrationaler Glaube | eine irrationale Mythologie | irrationaler Fremdenhass | irrationale Ängste | irrationale Zahlen (Mathematik Zahlen, die nur als unendliche Dezimalbrüche dargestellt werden können )b vernunftwidrig irrationale Argumente | eine irrationale Reaktion | er hat sich völlig irrational verhalten

 

Irrationalismus

Ir ra ti o na lis mus Substantiv, maskulin bildungssprachlich , der |Irrational i smus auch ˈɪr …|der Irrationalismus; Genitiv: des Irrationalismus, Plural: die Irrationalismen Vorrang des Gefühlsmäßigen vor der Verstandeserkenntnis

 

Irrationalität

Ir ra ti o na li tät Substantiv, feminin bildungssprachlich , die |Irrationalit ä t |die Irrationalität; Genitiv: der Irrationalität das Irrationale a ; irrationale Art die Irrationalität dieser Ängste

 

Irrationalzahl

Ir ra ti o nal zahl Substantiv, feminin Mathematik , die |Irration a lzahl |

 

Sanseido Wisdom Dictionary

irrational

ir ra tion al /ɪrǽʃ (ə )n (ə )l /形容詞 more ～; most ～｟主に書 ｠1 〈感情 行為 考えが 〉不合理な, 道理を逸した ; ばかげた (absurd ); 〈人が 〉理性を欠いた, 無分別な (↔rational )▸ irrational fears ばかげた恐怖心 2 理性を有さない .3 〘数 〙無理 (数 )の, 整数比で表せない .4 〘韻律 〙(ギリシャ ラテン語の詩脚が )変則格の, 破格の .名詞 C 〘数 〙無理数 (irrational number ).～ly 副詞 不合理に, 道理に反して .

 

irrationality

ir ra tion al i ty /ɪræ̀ʃənǽləti /名詞 複 -ties U C 不合 [不条 ]理性, 理性 [分別 ]のなさ, 論理性の欠如 ; 不合理な行動 [思考 ](↔rationality ).