Synonyms for indefatigable
ˌɪn dɪˈfæt ɪ gə bəlin·de·fati·ga·ble

WiktionaryRate these synonyms:3.0 / 1 vote

1. indefatigableadjective

   Synonyms:
   untiring, unflagging, tireless, unwearying, inexhaustible

   Antonyms:
   defatigable

2. indefatigableadjective

   Extremely persistent and untiring.

   Synonyms:
   inexhaustible, unflagging, untiring, unwearying, tireless

   Antonyms:
   defatigable

Complete Dictionary of Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. indefatigable

   Synonyms:
   unwearied, incessant, persistent, indomitable

   Antonyms:
   indolent, indifferent, idle

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. indefatigable, tireless, unflagging, unwearyingadjective

   showing sustained enthusiastic action with unflagging vitality

   "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence"

   Synonyms:
   industrious, tireless, unfailing, unflagging, unwearying, hardworking, untiring

   Antonyms:
   unenrgetic, lethargic

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. indefatigableadjective

   Synonyms:
   unwearied, untiring, unflagging, persevering, persistent, sedulous, assiduous, unremitting, never-tiring

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. indefatigableadjective

   Synonyms:
   untiring, persistent, unremitting, sedulous, unflagging

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "indefatigable":

   tireless, untiring, unremitting, relentless, unflagging

How to pronounce indefatigable?

How to say indefatigable in sign language?

Usage in printed sourcesFrom: 

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Words popularity by usage frequency

How to use indefatigable in a sentence?

1. Logan Pearsall Smith:

   The indefatigable pursuit of an unattainable perfection, even though it consists in nothing more than the pounding of an old piano, is what alone gives meaning to our life on this unavailing star.

2. Mark Wilson/Getty Images Hoyer:

   I think we have a very respectful relationship, i think we have a business-like relationship but I like Nancy and I admire Nancy greatly. She is an extraordinary human being. She’s indefatigable. She has extraordinary energy.

3. Charles Peguy:

   The honest man must be a perpetual renegade, the life of an honest man a perpetual infidelity. For the man who wishes to remain faithful must take himself perpetually unfaithful to all the continual, successive, indefatigable, renascent errors.

4. The New Yorker:

   Kelly had proved to be an indefatigable sleuth, and he played a key role in forcing the Iraqi government to admit that it had a biological weapons program.