Defatigable vs. Indefatigable

Defatigableadjective

Easily tired or wearied; capable of being fatigued.

Indefatigableadjective

Extremely persistent and untiring.

Defatigableadjective

Capable of being wearied or tired out.

Indefatigableadjective

Incapable of being fatigued; not readily exhausted; unremitting in labor or effort; untiring; unwearying; not yielding to fatigue; as, indefatigable exertions, perseverance, application.

‘Upborne with indefatigable wings.’;

Indefatigableadjective

showing sustained enthusiastic action with unflagging vitality;

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