| disaffected(adjective, bad, unhappy, negative) |
| discontented(adjective, bad, unhappy, unpleasant, negative) |
| dissatisfied(adjective, bad, unhappy, unpleasant, negative) |
| dragon |
| out of humour with(adjective, bad, unhappy, negative) |
| rebel(adjective, bad, unhappy, negative) |
| uncontented(adjective, bad, unhappy, unpleasant, negative) |
| hothead |
| hotspur |
| kicker(noun, grouch) |
| acidulated(adjective, bad, unhappy, negative) |
| acidulous(adjective, bad, unhappy, negative) |
| aggrieved(adjective, unhappy, unpleasant, woe, BA) |
| annoyed(adjective, bad, unhappy, negative) |
| back-ordered(adjective, unhappy, unpleasant, woe, BA) |
| backlog(adjective, unhappy, unpleasant, woe, BA) |
| boor(noun, police, lout, copper, dork) |
| browned-off(adjective, bad, unhappy, negative) |
| browned off(adjective, bad, unhappy, negative) |
| bug(noun, informal, grouch) |