| severe(adjective, mean, hard, tough, severe) |
| sour(adjective, tough, low, harsh, gloomy) |
| sullen(adjective, tough, harsh, gloomy, depressed) |
| waspish(adjective, difficult, rude, unpleasant, violence) |
| acute(adjective, severe, violence, sudden) |
| austere(adjective, mean, severe, sharp, ironic) |
| bad-tempered(adjective, tough, difficult, harsh, rude) |
| boorish(adjective, hard, tough, harsh, rude) |
| brisk(adjective, severe, sudden) |
| brusk |
| cavalier(adjective, rude, indifferent, fresh, casual) |
| cranky(adjective, low, gloomy, melancholy, miserable) |
| frank |
| ill-natured(adjective, difficult, rude, unpleasant, unfriendly) |
| impertinent(adjective, rude, fresh, crude, blunt) |
| impetuous(adjective, keen, rough, violent, violence) |
| insolent(adjective, rude, fresh, crude, blunt) |
| nasty(adjective, mean, hard, tough, sharp) |
| open |
| out of the blue(adjective, sudden) |