The best replacement for passive is active voice.

The best alternatives to passive are rated as following:
★★★★★  active voice
★★★  active 3d
★★  active transport
★★  active
★★  active immunity
★★  active ftp
★★  active pickups
★  active speakers
★  non passive income
★  active investing
★  active euthanasia
★  active income
★  aggressive
★  active verbs
★  active bass
★  active sentences
  active solar energy
  active subwoofer
  active sentence
  active rom
  active management
  active range of motion
  nonpassive
  active di box
  active volume pedal
  active studio monitors
  active monitors
  general income
  active writing
  active 3d glasses
  active learning
  active alarm
  assertive
  active verb
  active di
  non-passive income
  active listening
  non passive
  attentive listening
  active sub
  powered subwoofer
  active crossover
  active diffusion
  active solar

Your alternative for passive is not listed? Suggest!
Speaking about passive, one probably shouldn't forget about modals.

Other search terms related to passive and their ratings are:
★★★★★ modals
★★ agent
★★ reporting verbs
★ modal auxiliaries
You have in mind a companion for passive and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of passive in all years. Click on graph for more.
passive
active voice
active 3d