1. active
2. progressive, combat-ready
3. fighting, operational, active
4. activist, activistic, hands-on, proactive, participating
5. involved, active
6. about, astir, acrobatic, athletic, gymnastic, agile, nimble, quick, spry, hot, hyperactive, overactive, lively, on the go, energetic, lively, active
7. activated, active
8. brisk, bustling, busy, going, in full swing, open, alive
9. existent, existing, active
10. active
11. active
12. dynamic, active
13. alive, live, eruptive, active
14. surface-active, active
15. activated, on, on duty, on-duty, practicing, moving
16. physical

1. energetic, active agent
2. chemical agent, active voice
3. voice, person
3. individual, someone, somebody, mortal, human, soul