He is indefatigable.
Source: tatoeba (9922075)
Indefatigable
//ˌɪn.dɪˈfæt.ɪ.ɡə.bəl//
Synonyms for "indefatigable" (104 found)
Ranked by relevance and common usage.
Closest matches (21)
Strong matches (31)
Related words (52)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Antonyms
1 entriesSynonyms
1 entriesRelated terms
1 entriesderived
3 entriesis a
1 entriesrelated to
2 entriessimilar
2 entriesTranslations
41 translations across 28 languages.
Ancient Greek
2 entries- ἀκάματος adj (extremely persistent and untiring)
- ἄτρυτος adj (extremely persistent and untiring)
Arabic
1 entries- لَا يَتْعَبُ adj (extremely persistent and untiring)
Armenian
2 entries- անխոնջ adj (extremely persistent and untiring)
- չհոգնող adj (extremely persistent and untiring)
Belarusian
1 entries- нясто́мны adj (extremely persistent and untiring)
Bulgarian
1 entries- неуморен adj (extremely persistent and untiring)
Chinese Mandarin
1 entries- 不倦 adj (extremely persistent and untiring)
Czech
1 entries- neúnavný adj (extremely persistent and untiring)
Danish
1 entries- utrættelig adj (extremely persistent and untiring)
Dutch
2 entries- onvermoeibaar adj (extremely persistent and untiring)
- onvermoeid adj (extremely persistent and untiring)
Finnish
2 entries- uupumaton adj (extremely persistent and untiring)
- väsymätön adj (extremely persistent and untiring)
French
1 entries- infatigable adj (extremely persistent and untiring)
German
1 entries- unermüdlich adj (extremely persistent and untiring)
Greek
1 entries- ακούραστος adj (extremely persistent and untiring)
Hebrew
1 entries- לא מתעיף adj (extremely persistent and untiring)
Hungarian
2 entries- fáradhatatlan adj (extremely persistent and untiring)
- kitartó adj (extremely persistent and untiring)
Irish
4 entries- dochloíte adj (extremely persistent and untiring)
- dosháraithe adj (extremely persistent and untiring)
- dothraochta adj (extremely persistent and untiring)
- dothuirsithe adj (extremely persistent and untiring)
Italian
1 entries- infaticabile adj (extremely persistent and untiring)
Macedonian
2 entries- безуморен adj (extremely persistent and untiring)
- неуморен adj (extremely persistent and untiring)
Māori
1 entries- pikoni adj (extremely persistent and untiring)
Norwegian
1 entries- utrøttelig adj (extremely persistent and untiring)
Portuguese
1 entries- infatigável adj (extremely persistent and untiring)
Russian
3 entries- неуста́нный adj (extremely persistent and untiring)
- неутоми́мый adj (extremely persistent and untiring)
- упо́рный adj (extremely persistent and untiring)
Scottish Gaelic
1 entries- do-shàrachaidh adj (extremely persistent and untiring)
Spanish
2 entries- incansable adj (extremely persistent and untiring)
- infatigable adj (extremely persistent and untiring)
Swedish
1 entries- outtröttlig adj (extremely persistent and untiring)
Tocharian B
1 entries- ekwalatte adj (extremely persistent and untiring)
Ukrainian
2 entries- невто́мний adj (extremely persistent and untiring)
- неосла́бний adj (extremely persistent and untiring)
Welsh
1 entries- di-flino adj (extremely persistent and untiring)
Sample sentences
11 total sentences available.
My grandfather is an indefatigable worker.
Source: tatoeba (10154143)
Mary is an indefatigable defender of the rights of indigenous communities.
Source: tatoeba (10154149)
Mary is indefatigable in denouncing the schemes of the world's narco-states.
Source: tatoeba (10154159)
Showing 4 of 11 available sentences.
Keep exploring
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.