1. (adj) indefatigable, tireless, unflagging, unwearying
showing sustained enthusiastic action with unflagging vitality
Synonyms: industrious, tireless, unfailing, unflagging, unwearying, indefatigable, hardworking, untiring Antonyms: lethargic, negligent, unenrgetic
2. (adj) hardworking, industrious, tireless, untiring
characterized by hard work and perseverance
Synonyms: industrious, tireless, gumptious, unflagging, energetic, unwearying, up-and-coming, indefatigable, hardworking, untiring Antonyms: lethargic, unenrgetic, negligent
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