| sour(adjective, mean, nasty, difficult, cross) |
| tetchy(adjective, mean, informal, cross, sensitive) |
| ugly(adjective, mean, rough, cross, rude) |
| unfriendly(adjective, mean, nasty, unpleasant, disagreeable) |
| ill-humored(difficult, unpleasant, irritable, disagreeable, crabby) |
| accidentally on purpose(expression, adjective, idiom, mean, nasty) |
| acrimonious(mean, sharp, nasty, cross, irritable) |
| active(adjective, energetic, lively, aggressive, fiery) |
| adamant(tough, firm, unreasonable, grim, inflexible) |
| aggressive(adjective, mean, sharp, nasty, cross) |
| agin(counter, antagonistic, contrary, conflicting, incompatible) |
| alien(adjective, mean, nasty, unfriendly, hateful) |
| alive(adjective, energetic, lively, aggressive, fiery) |
| allergic to(expression, hostile, unfriendly, antagonistic, contrary) |
| annoying(adjective, mean, nasty, offensive, unpleasant) |
| antagonistic opposite(expression, negative, hostile, different, adverse) |
| anti(adjective, mean, negative, hostile, unfriendly) |
| antithetic(counter, antagonistic, contrary, conflicting, incompatible) |
| antithetical(negative, hostile, antagonistic, contrary, adverse) |
| ardent(nasty, determined, hostile, spirited, aggressive) |