Synonyms of energetic

1 Syllable

spry, fresh, quick, brisk, strong, spright, spryer, spryest, tough

2 Syllables

sprightlier, vibrant, willing, rugged, grinder, sprightly, spunky, potent, sturdy, puncher, driving, puissant, bouncier, strenuous, strongest, brisker, hellbent, trenchant, breezy, quicker, bullish, vivid, rousing, stalwart, viral, quickest, snappy, peppy, spunkier, vital, asap, lusty, zippy, bouncy, stronger, hardy, rested, banzai

3 Syllables

ambitious, unflagging, industrious, tireless, athletic, kinetic, vigorous, powerful, agile, spirited, untiring, go-getting, emphatic, red-blooded, forcible, untired, demoniac, vivacious, unwearied, unwearying, hard-hitting, proactive, weariless, efficient, forceful, dynamic, galvanic, virile, impellent, active, gogetting, lively, intense

4 Syllables

radioactive, high-powered, productive, propulsive, goal-oriented, expressive, aggressive, combative, unfatigued, effective, all-consuming, persuasive, unretiring, fairylike, easy-moving, convictive, dynamical, animated, efficacious, heavy-duty, harefooted, enterprising

6 Syllables

indefatigable