adj. 25B6; adjective
a nasty smell : UNPLEASANT, disagreeable, disgusting, distasteful, awful, dreadful, horrible, terrible, vile, foul, abominable, frightful, loathsome, revolting, repulsive, odious, sickening, nauseating, repellent, repugnant, horrendous, appalling, atrocious, offensive, objectionable, obnoxious, unsavoury, unappetizing, off-putting; noxious, foul-smelling, smelly, stinking, rank, fetid, malodorous, mephitic; informal ghastly, horrid, gruesome, diabolical, yucky, skanky, God-awful, gross; Brit. informal beastly, grotty, whiffy, pongy, niffy; N. Amer. informal lousy, funky; Austral. informal on the nose; poetic/literary miasmal, noisome.
the weather turned nasty : UNPLEASANT, disagreeable, foul, filthy, inclement; wet, stormy, cold, blustery.
she can be really nasty : UNKIND, unpleasant, unfriendly, disagreeable, rude, churlish, spiteful, malicious, mean, ill-tempered, ill-natured, vicious, malevolent, obnoxious, hateful, hurtful; informal bitchy, catty.
a nasty accident 007C; a nasty cut : SERIOUS, dangerous, bad, awful, dreadful, terrible, severe; painful, ugly.
she had the nasty habit of appearing unannounced : ANNOYING, irritating, infuriating, disagreeable, unpleasant, maddening, exasperating.
they wrote nasty things on the wall : OBSCENE, indecent, offensive, crude, rude, dirty, filthy, vulgar, foul, gross, disgusting, pornographic, smutty, lewd; informal sick.
nice.