indefatigable — indefatigable, tireless, weariless, untiring, unwearying, unwearied, unflagging are comparable in their basic meaning of not feeling or manifesting fatigue, but they are closer synonyms in their extended sense of capable of prolonged and arduous… … New Dictionary of Synonyms
indefatigable — (adj.) 1580s (implied in indefatigably), from Fr. indefatigable (15c.), from L. indefatigabilis that cannot be wearied, from in not (see IN (Cf. in ) (1)) + defatigare to tire out, from de utterly, down, away + fatigare to weary (see … Etymology dictionary
indefatigable — [in΄di fat′i gə bəl] adj. [MFr indéfatigable < L indefatigabilis < in , not + defatigare, to tire out, weary: see DE & FATIGUE] that cannot be tired out; not yielding to fatigue; untiring indefatigability n. indefatigably adv … English World dictionary
indefatigable — index diligent, faithful (diligent), incessant, indomitable, industrious, infallible, patient, pe … Law dictionary
indefatigable — [adj] untiring active, assiduous, bound and determined*, dead set on*, determined, diligent, dogged, energetic, hell bent*, industrious, inexhaustible, ironclad, nose to grindstone*, painstaking, patient, persevering, persistent, pertinacious,… … New thesaurus
indefatigable — ► ADJECTIVE ▪ never tiring or stopping. DERIVATIVES indefatigably adverb. ORIGIN Latin indefatigabilis, from fatigare wear out … English terms dictionary
indefatigable — [[t]ɪ̱ndɪfæ̱tɪgəb(ə)l[/t]] ADJ You use indefatigable to describe someone who never gets tired of doing something. [FORMAL] His indefatigable spirit helped him to cope with his illness... He was indefatigable in his efforts to secure funding for… … English dictionary
indefatigable — in|de|fat|i|ga|ble [ˌındıˈfætıgəbəl] adj formal [Date: 1600 1700; Origin: Early French indéfatigable, from Latin indefatigabilis, from fatigare; FATIGUE] determined and never giving up ▪ an indefatigable campaigner for human rights… … Dictionary of contemporary English
indefatigable — adjective Etymology: Middle French, from Latin indefatigabilis, from in + defatigare to fatigue, from de + fatigare to fatigue Date: 1608 incapable of being fatigued ; untiring < an indefatigable worker > • indefatigability noun •… … New Collegiate Dictionary
indefatigable — adjective /ˌɪn.dɪˈfæ.tɪ.ɡə.bl,ɪndɨˈfæɾɨɡəbəɫ/ Extremely persistent and untiring. but he was at the same time an excellent scholar, and most indefatigable in teaching the two lads. Syn: inexhaustible, tireless, untiring, unwearying, u … Wiktionary
