Antonyms for tasteful

all:

tasteless.

nice, refined:

poor, unstylish, plain, ugly, unsophisticated, unfashionable, tasteless, inelegant, repulsive, unrefined, unattractive, offensive, homely, inferior, crude, rough.

noun:

hideous, disgusting, repulsive, clumsy, stinky, detestable, unwholesome, abominable, commonplace, sickening, inartistic, graceless, harsh, stale, horrid, unpleasant, distasteful, smelly, repellent, nauseating, awful, abhorrent, foul, inharmonious, fulsome, noisome, repugnant, banal, unappetizing, displeasing, unpalatable, deformed, rude, offensive, disagreeable, noxious, boring, wretched, rugged, Unhandsome, tedious, yucky.

n.:

inaesthetic, unaesthetic.

Paraphrases for Tasteful:

• Adjective :
  classy, elegant, graceful, handsome, overdressed, stylish, tasty, well-formed.