How many syllables?
How it's divided?
- a. - Incapable of being fatigued; not readily exhausted;
unremitting in labor or effort; untiring; unwearying; not yielding to
fatigue; as, indefatigable exertions, perseverance, application.
- adjective - Showing sustained enthusiastic action with unflagging vitality
6 Syllable Words Starting with?