energetic
en-er-get-ic
adjective
Possessing or displaying great energy, vigour, and enthusiasm; very active and lively.
"The energetic children played football in the park."
Thesaurus
Synonyms: industrious, gumptious, enterprising, up-and-coming, tireless, zippy, driving, indefatigable, alert, unwearying, unflagging, canty
Antonyms: lethargic, unenergetic