English-Thai Dictionary

indefatigable

A ที่ ไม่ย่อท้อ  tireless assiduous dogged sluggish torpid slothful

 

indefatigableness

N ความ ไม่ย่อท้อ 

 

Webster's 1828 Dictionary

INDEFATIGABLE

a.[L. indefatigabilis; in and defatigo, fatigo, to fatigue. ] Unwearied; not tired; not exhausted by labor; not yielding to fatigue; as indefatigable exertions; indefatigable attendance or perseverance. Upborne with indefatigable wings.

 

INDEFATIGABLENESS

n.Unweariedness; persistency.

 

Webster's 1913 Dictionary

INDEFATIGABLE

In `de *fat "i *ga *ble, a. Etym: [L. indefatigabilis: cf. OF. indefatigable. See In- not, and Defatigable, and cf. Infatigable. ]

 

Defn: Incapable of being fatigued; not readily exhausted; unremitting in labor or effort; untiring; unwearying; not yielding to fatigue; as, indefatigable exertions, perseverance, application. "A constant, indefatigable attendance. " South. Upborne with indefatigable wings. Milton.

 

Syn. -- Unwearied; untiring; persevering; persistent.

 

INDEFATIGABLENESS

INDEFATIGABLENESS In `de *fat "i *ga *ble *ness, n.

 

Defn: Indefatigable quality; unweariedness; persistency. Parnell.

 

New American Oxford Dictionary

indefatigable

in de fat i ga ble |ˌindəˈfatigəbəl ˈˌɪndəˈfædəɡəbəl | ▶adjective (of a person or their efforts ) persisting tirelessly: an indefatigable defender of human rights. DERIVATIVES in de fat i ga bil i ty |-ˌfatigəˈbilitē |noun, in de fat i ga bly |-blē |adverb ORIGIN early 17th cent.: from French, or from Latin indefatigabilis, from in- ‘not ’ + de- ‘away, completely ’ + fatigare ‘wear out. ’

 

Oxford Dictionary

indefatigable

indefatigable |ˌɪndɪˈfatɪgəb (ə )l | ▶adjective (of a person or their efforts ) persisting tirelessly: an indefatigable defender of human rights. DERIVATIVES indefatigability |-ˈbɪlɪti |noun, indefatigably adverb ORIGIN early 17th cent.: from French, or from Latin indefatigabilis, from in- ‘not ’ + de- ‘away, completely ’ + fatigare ‘wear out ’.

 

American Oxford Thesaurus

indefatigable

indefatigable adjective the indefatigable celebrity spoke at eight different colleges: tireless, untiring, unflagging, unwearied; determined, tenacious, dogged, single-minded, assiduous, industrious, hard-working, unswerving, unfaltering, unwavering, unshakable, resolute, indomitable; persistent, relentless, unremitting.

 

Oxford Thesaurus

indefatigable

indefatigable adjective he is one of those indefatigable researchers who won't take no for an answer: tireless, untiring, never-tiring, unwearied, unwearying, unflagging; energetic, dynamic, enthusiastic; unrelenting, relentless, unremitting, unswerving, unfaltering, unshakeable, indomitable; persistent, tenacious, determined, dogged, single-minded, assiduous, industrious. ANTONYMS idle; feeble.

 

Sanseido Wisdom Dictionary

indefatigable

in de fat i ga ble /ɪ̀ndɪfǽtɪɡəb (ə )l /形容詞 ｟かたく ｠疲れを知らない, 根気のよい, 不屈の .ì n de f á t i ga bly 副詞