English adjective: indefatigable | |||
1. | indefatigable showing sustained enthusiastic action with unflagging vitality | ||
Samples | An indefatigable advocate of equal rights. A tireless worker. Unflagging pursuit of excellence. | ||
Synonyms | tireless, unflagging, unwearying | ||
Similar | energetic | ||
Antonyms | lethargic, unenrgetic | ||