| acrid(adjective, sharp, harsh, unpleasant, bitter) |
| acerbic(adjective, mean, evil, taste, sharp) |
| bitter(adjective, mean, evil, sharp, nasty) |
| caustic(adjective, mean, evil, sharp, nasty) |
| sharp(adjective, mean, evil, nasty, harsh) |
| acid(noun, adjective, mean, evil, taste) |
| sour(adjective, taste, sharp, harsh, bitter) |
| tart(noun, adjective, taste, sharp, harsh) |
| biting(adjective, mean, evil, sharp, nasty) |
| harsh(adjective, sharp, unpleasant, critical, unkind) |
| acidulous(adjective, taste, bitter, sour) |
| astringent(adjective, sharp, harsh, unpleasant, bitter) |
| cutting(adjective, mean, evil, sharp, nasty) |
| acetous(adjective, taste, sharp, harsh, unpleasant) |
| acrimonious(adjective, mean, sharp, nasty, unpleasant) |
| keen(adjective, sharp, unpleasant, bitter, sour) |
| sarcastic(adjective, mean, sharp, nasty, harsh) |
| virulent |
| blistering |
| stinging(adjective, sharp, unpleasant, bitter, sour) |