| operational |
| operative(adjective, moving, active, effective, running) |
| overloaded(adjective, lively, active, busy, occupied) |
| performing(adjective, full, involved, occupied, working) |
| persevering(adjective, lively, active, busy, occupied) |
| plugging away(expression, adjective, active, busy, occupied) |
| practicing(adjective, full, involved, occupied, working) |
| preoccupied(adjective, full, involved, occupied, working) |
| proceeding |
| progressive(adjective, moving, active, effective, running) |
| pursuing(adjective, full, involved, occupied, working) |
| pushing(adjective, moving, active, effective, running) |
| rapid(adjective, moving, active, effective, running) |
| rapt(adjective, full, involved, occupied, working) |
| restless(adjective, moving, active, effective, running) |
| rolling(adjective, moving, active, effective, running) |
| rushing(adjective, moving, active, effective, running) |
| selected(adjective, active, busy, occupied, working) |
| signed(adjective, active, full, busy, occupied) |
| slaving(adjective, lively, active, busy, occupied) |