Open English Wordnet
Adjectives
(a)unsympatheticnot sympathetic or disposed toward“unsympathetic officialdom”, “people unsympathetic to the revolution”, “his dignity made him seem aloof and unsympathetic”
(a)unsympathetic, unappealing, unlikeable, unlikable(of characters in literature or drama) tending to evoke antipathetic feelings“all the characters were peculiarly unsympathetic”
(s)disagreeable, unsympatheticnot agreeing with your tastes or expectations“found the task disagreeable and decided to abandon it”, “a job temperamentally unsympathetic to him”