| vitriolic |
| wearisome(adjective, dull, tough, severe, rough) |
| enraging(verb, adjective, aggravating) |
| irking(verb, aggravating) |
| irritative |
| maddening(adjective, distressing, annoying, infuriating) |
| peeving(verb, adjective, troublesome, exasperating, aggravating) |
| rankling(verb, adjective, annoying, aggravating, infuriating) |
| riling(verb, adjective, displeasing) |
| antagonizing(verb, adjective, aggravating) |
| difficult(adjective, dull, hard, tough, rough) |
| fretting(verb, aggravating, chafing) |
| piercing(adjective, sharp, painful, distressing, troublesome) |
| plaguing(verb, pain, annoying, mocking, playful) |
| rasping(verb, upsetting, chafing) |
| severe(adjective, hard, tough, offensive, painful) |
| unsavoury |
| acrid(adjective, sharp, harsh, bitter, sour) |
| agonizing(verb, adjective, painful, paining) |
| angering(verb, displeasing) |