| obtainable(adjective, open, free, fit, friendly) |
| off duty |
| off work |
| on deck(expression, adjective, open, free, friendly) |
| on hold(expression, adjective, dull, idle, sluggish) |
| on holiday(expression, adjective, relaxing, off) |
| on tap(expression, adjective, open, free, fit) |
| on vacation(expression, adjective, relaxing, off) |
| open-door(adjective, open, free, fit, friendly) |
| operative(adjective, open, free, fit, friendly) |
| ossified(adjective, dull, idle, sluggish, lazy) |
| otiose |
| out of commission(expression, adjective, idiom, dull, idle) |
| out of harness(expression, idiom) |
| out of service(expression, adjective, idiom, dull, idle) |
| permitted(adjective, open, free, fit, friendly) |
| practicable(adjective, open, free, fit, friendly) |
| proper(adjective, open, free, fit, friendly) |
| public(adjective, open, free, fit, friendly) |
| quiet(adjective, dull, idle, sluggish, lazy) |