indefatigable
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indefatigable¹
- /ˌɪn.dɪˈfæt.ɪ.ɡə.bəl/ UK
- /ˌɪn.dəˈfæt.ɪ.ɡə.bəl/ Australia, US
- [ˌɪn.dəˈfæɾ.ɪ.ɡə.bəl] Australia, US
- /ˌɪn.dɪ.fəˈti.ɡə.bəl/ proscribed, sometimes
- /ˌɪn.də-/ proscribed, sometimes
Where it comes from
From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + dēfatīgō (“to tire out”).
adjective more indefatigable · most indefatigable
-
Extremely persistent and untiring.
[...] But he was at the ſame Time an excellent Scholar, and moſt indefatigable in teaching the two Lads.
Similar: inexhaustible, relentless, tireless, unflagging, unsinkable, untiring, unwearying · Opposite: defatigable
Indefatigable²
Where it comes from
Named by the British Admiralty in honor of the HMS Indefatigable.
proper noun
-
Synonym of Santa Cruz, an island of Galapagos, Ecuador.
Similar: Santa Cruz
Translations
Every language
adj extremely persistent and untiring
| Español | incansable, infatigable |
|---|---|
| 中文 | 不倦 bùjuàn |
| Português | infatigável |
| Français | infatigable |
| Deutsch | unermüdlich |
| Italiano | infaticabile |
| Ελληνικά | ακούραστος akoúrastos |
| Русский | неутоми́мый neutomímyj, неуста́нный neustánnyj, упо́рный upórnyj |
| العربية | لَا يَتْعَبُ lā yatʕabu |
| עברית | לא מתעיף la' mth'if |
Talk about this word "indefatigable." Wiktionary, via Micwyn, micwyn.com/word/indefatigable. Accessed 6 Nov. 2026. indefatigable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/indefatigable "indefatigable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/indefatigable.Cite this
@misc{indefatigable_2026,
title = {indefatigable},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/indefatigable},
urldate = {2026-11-06}
}