active (n.)
- acting
- activist
- acute
- alert
- bouncing
- bubbly
- catty
- compliant
- constant
- driving
- dynamic
- efficient
- faithful
- full
- functioning
- going
- inaction
- keen
- live
- living
- middle
- militant
- mobile
- motile
- motive
- motor
- operative
- passive
- pert
- prompt
- propellant
- quick
- quicksilver
- ready
- reflexive
- running
- rushing
- smacking
- spanking
- stirring
- strong
- traveling
- true
- voice
- working
active (v.)
active (adj.)
- acting
- activist
- activistic
- acute
- aggressive
- agile
- alert
- alive
- animated
- assiduous
- bouncing
- bouncy
- breezy
- brisk
- bubbly
- bustling
- busy
- catty
- chipper
- compliant
- conforming
- conscientious
- constant
- devoted
- devout
- diligent
- driving
- duteous
- dutiful
- dynamic
- ebullient
- effective
- effectual
- effervescent
- efficacious
- efficient
- energetic
- enterprising
- enthusiastic
- expeditious
- faithful
- flexible
- forceful
- forcible
- frisky
- full
- functional
- functioning
- going
- graceful
- hearty
- hyperactive
- impelling
- impetuous
- incisive
- industrious
- influential
- intense
- keen
- kinetic
- live
- lively
- living
- loyal
- lusty
- mercurial
- meticulous
- mettlesome
- middle
- militant
- mindful
- mobile
- motile
- motivational
- motive
- motor
- moving
- nimble
- observant
- occupied
- ongoing
- operating
- operational
- operative
- passive
- peppy
- perky
- pert
- physical
- potent
- powerful
- prompt
- propellant
- propelling
- punctilious
- punctual
- quick
- quicksilver
- ready
- reflexive
- regardful
- robust
- running
- rushing
- scrupulous
- snappy
- spanking
- spirited
- sprightly
- spry
- stirring
- strenuous
- strong
- supple
- transitional
- trenchant
- true
- vibrant
- vigorous
- vivacious
- vivid
- wide-awake
- working
- zestful
- zesty
- zippy