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Indomitable vs Indefatigable - What's the difference?

indomitable | indefatigable |

As adjectives the difference between indomitable and indefatigable

is that indomitable is incapable of being subdued, overcome, or vanquished while indefatigable is extremely persistent and untiring.

indomitable

English

Adjective

(en adjective)
  • Incapable of being subdued, overcome, or vanquished.
  • * 1902 , , The Four Feathers , ch. 1:
  • Personal courage and an indomitable self-confidence were the chief, indeed the only, qualities which sprang to light in General Feversham.
  • * 1910 , , A Shepherd's Life , ch. 7:
  • But he was a youth of indomitable spirit, strong and agile as a wild cat.
  • * 2007 , , " When Betty Got Frank," Time , 31 March:
  • Nobody came on to the movie camera—wrapped it in a bear hug and wrestled it to submission—like Betty Hutton. They called this 40s singer-actress "the Blitzkrieg blond" . . . . [S]he was indomitable , unstoppable.

    Synonyms

    * impregnable, inexpugnable, insuperable, insurmountable, invincible, never-say-die, unbeatable, unconquerable, unsubduable, unsurmountable, unvanquishable

    indefatigable

    English

    Adjective

    (en adjective)
  • Extremely persistent and untiring.
  • *
  • but he was at the same time an excellent scholar, and most indefatigable in teaching the two lads.
  • * 1898 , :
  • All night long the Martians were hammering and stirring, sleepless, indefatigable , at work upon the machines they were making ready, and ever and again a puff of greenish-white smoke whirled up to the starlit sky.

    Synonyms

    * inexhaustible, tireless, unflagging, unsinkable, untiring, unwearying,

    Antonyms

    * defatigable (much less common)

    Derived terms

    * indefatigably * indefatigability * indefatigableness