blistering, acid, yucky, sharp-worded, acerbic, forbidding, uncongenial, embarrassing, mortifying, rebarbative, hot, sulfurous, caustic, virulent, dour, god-awful, pain, icky, acrid, rough, sharp, afflictive, objectionable, venomous, grim, vitriolic, sulphurous, tart, ungrateful, acerb, harsh, unhappy, repellant, hellish, good, unsympathetic, beastly, rude
disagreeable (part of speech: adjective)
bad (part of speech: adjective)
painful (part of speech: adjective)
cruel, annoying, horrendous, smarting, irksome, bitter, woeful, excruciating, anguishing, aching, acute, trying, gnawing, offensive, cutting, chafing, grievous, grueling, withering, agonizing, biting, hurtful, piercing, miserable, bothersome, troublesome, torturing, distressful, unbearable, stabbing, wrenching, cramping, inflaming, sore, burdensome, irritating, uncomfortable, arduous, tormenting, oppressive, insufferable, harrowing, aggravating, painful, throbbing, crushing, stinging, besetting, severe
ugly (part of speech: adjective)
ill-looking, undesirable, disfigured, plain, odious, unappealing, homely, displeasing, unaesthetic, abhorrent, shapeless, repellent, repulsive, disagreeable, unsightly, unlovely, ugly, unpleasing, repugnant, hideous, grotesque, unattractive, inelegant
awful (part of speech: adjective)
- Being sick in a space suit was about the most unpleasant thing that could happen. - "Rip Foster in Ride the Gray Planet", Harold Leland Goodwin.
- It is easy to pick out a pleasant duty here and there, or an unpleasant duty even; and stand ready to be faithful in that. - "Opportunities", Susan Warner.
- This was no unpleasant task. - "The Killer", Stewart Edward White.