List of displeasing synonyms and displeasing related words.
abhorrent, annoying, bitter, bothersome, disagreeable, disappointing, disheartening, dislikable, dissatisfactory, distasteful, foul-tasting, had, ill-flavored, inadequate, incommensurate, insufficient, intolerable, irksome, mislikable, not good enough, odious, rotten, sour, thankless, ugly, unalluring, unappealing, unappetizing, unattractive, uncongenial, undelectable, undelicious, undesirable, unengaging, unenjoyable, unfulfilling, ungratifying, unhappy, uninviting, unlikable, unlovable, unpalatable, unpleasant, unpleasing, unsatisfactory, unsatisfying, unsavory, untasteful, untasty, unwelcome, vexing