unpleasant
1. [ adjective ] not pleasant
Examples:

"an unpleasant personality" "unpleasant repercussions" "unpleasant odors"

Related terms: pleasant acerb harsh sharp embarrassing harsh afflictive dour dreadful unlovely beastly hot beastly rebarbative ungrateful unhappy nasty displeasing unpalatable ill-natured offensive pleasantness
2. [ adjective ] causing disapproval or protest
Synonyms: obnoxious objectionable
Examples:

"a vulgar and objectionable person"

Related terms: offensive
3. [ adjective ] very unpleasant or annoying
Related terms: nasty
Similar spelling:   unpleasantly
  unpleated
  unplanted
  unpleasing
  unipolar
  unpledged
  unplayable
  unbleached