| indifferent(adjective, person, quiet, cool, restrained) |
| inhumane(adjective, pessimistic, cynical, distrustful, misanthropic) |
| irascible(adjective, sullen, grumpy, bad-tempered, tetchy) |
| laid-back(adjective, informal, shy, unfriendly, antisocial) |
| malevolent(adjective, upset, mean, nasty, hostile) |
| removed(adjective, close, quiet, private, isolated) |
| segregative(adjective, person, avoid, asocial, dissocial) |
| shut-in(adjective, person, avoid, asocial, dissocial) |
| sour(adjective, mean, tough, nasty, harsh) |
| unamiable |
| uncordial(adjective, person) |
| ungregarious |
| adverse(adjective, person, mean, nasty, unfriendly) |
| bad-tempered(adjective, grumpy, tetchy) |
| beetle-browed(adjective, sullen) |
| brooding(adjective, shy, unfriendly, antisocial) |
| choleric(adjective, grumpy, bad-tempered, tetchy) |
| cranky(adjective, grumpy, bad-tempered, tetchy) |
| crotchety(adjective, tough, harsh, awkward, grumpy) |
| crusty(adjective, tough, harsh, rude, coarse) |