Definitions for: Indefatigable

[adj] showing sustained enthusiastic action with unflagging vitality; "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence"

Webster (1913) Definition: In`de*fat"i*ga*ble, a. [L. indefatigabilis: cf.
OF. indefatigable. See In- not, and Defatigable, and cf.
Infatigable.]
Incapable of being fatigued; not readily exhausted;
unremitting in labor or effort; untiring; unwearying; not
yielding to fatigue; as, indefatigable exertions,
perseverance, application. ``A constant, indefatigable
attendance.'' --South.

Upborne with indefatigable wings. --Milton.

Syn: Unwearied; untiring; persevering; persistent.

Synonyms: energetic, tireless, unflagging, unwearying

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