| sullen(adjective, mean, sharp, rough, nasty) |
| surly(adjective, mean, rough, nasty, dark) |
| touchy(difficult, irritable, contrary, turbulent, belligerent) |
| trigger-happy(energetic, antagonistic, aggressive, argumentative, contentious) |
| virulent(adjective, mean, nasty, unfriendly, hateful) |
| warmongering |
| warring(energetic, hostile, antagonistic, aggressive, radical) |
| adverse(adjective, mean, nasty, unfriendly, hateful) |
| alien(adjective, mean, nasty, unfriendly, hateful) |
| anti(adjective, mean, nasty, unfriendly, hateful) |
| approximative |
| arbitrary(adjective, hard, severe, rough, harsh) |
| ardent(nasty, determined, hostile, spirited, aggressive) |
| assaultive |
| at loggerheads(expression, nasty, determined, hostile, spirited) |
| bad-tempered(adjective, mean, sharp, difficult, harsh) |
| ballpark |
| bickering |
| bilious |
| bitter(adjective, mean, nasty, unfriendly, hateful) |