energetic (adj.)

• active
• activist
• activistic
• acute
• aggressive
• alive
• animated
• ardent
• assiduous
• authoritative
• bouncing
• bouncy
• breezy
• brisk
• bubbly
• chipper
• cogent
• diligent
• dynamic
• ebullient
• effective
• effervescent
• enterprising
• enthusiastic
• fervent
• forceful
• forcible
• frisky
• hard
• hardworking
• hearty
• high-powered
• high-pressure
• high-tension
• hot
• impetuous
• incisive
• indefatigable
• industrious
• intense
• invigorated
• irresistible
• keen
• kinetic
• laborious
• live
• lively
• living
• lusty
• mercurial
• mettlesome
• mighty
• militant
• operative
• peppy
• perky
• pert
• potent
• powerful
• puissant
• quicksilver
• relentless
• robust
• ruling
• sedulous
• sleepless
• snappy
• spanking
• spirited
• sprightly
• spry
• strenuous
• striking
• strong
• telling
• tireless
• trenchant
• unflagging
• unremitting
• unsleeping
• unsparing
• untiring
• unwearied
• valid
• vehement
• vibrant
• vigorous
• vital
• vivacious
• vivid
• zealous
• zestful
• zesty
• zippy