| tartness(noun, savoriness) |
| touchy(adjective, irritable, behaviour, sullen, sulky) |
| vitriolic(adjective, mean, severe, nasty, hostile) |
| whiny(difficult, critical, sullen, crabby, sulky) |
| acerbate(action, upset, poison, alienate, disillusion) |
| acetify |
| acetous(adjective, taste, sharp, harsh, bitter) |
| dismal(adjective, sadness, gloom, unclear, morose) |
| envenom(verb, action, upset, turn, poison) |
| ill-humored(adjective, tough, difficult, harsh, feelings) |
| irritating |
| mean(adjective, bad, severe, nasty, cross) |
| melancholy(adjective, low, feelings, gloomy, miserable) |
| miserable(adjective, low, feelings, discontent, glum) |
| rank(adjective, hard, nasty, unpleasant, corrupt) |
| rough(adjective, bad, hard, severe, sharp) |
| spoiled(adjective, hard, corrupt, disgusting, old) |
| unfriendly(adjective, mean, hard, evil, rough) |
| acidulated(adjective, upset, bitter, altered, alienate) |
| choleric(adjective, difficult, gloomy, depressed, crabby) |