unpleasant

from WordNet (r) 3.0 (2006)

unpleasant
    adj 1: disagreeable to the senses, to the mind, or feelings ;
           "an unpleasant personality"; "unpleasant repercussions";
           "unpleasant odors" [ant: {pleasant}]

from The Collaborative International Dictionary of English v.0.48

Unpleasant \Un*pleas"ant\, a.
   Not pleasant; not amiable or agreeable; displeasing;
   offensive. -- {Un*pleas"ant*ly}, adv. -- {Un*pleas"ant*ness},
   n.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

36 Moby Thesaurus words for "unpleasant":
      abhorrent, bad, bitter, disagreeable, dislikable, displeasing,
      distasteful, foul-tasting, ill-flavored, intolerable, mislikable,
      odious, rotten, sour, thankless, ugly, unalluring, unappealing,
      unappetizing, unattractive, uncongenial, undelectable, undelicious,
      undesirable, unengaging, unenjoyable, unhappy, uninviting,
      unlikable, unlovable, unpalatable, unpleasing, unsavory,
      untasteful, untasty, unwelcome

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