WordNet sense 1 ((of characters in literature or drama) tending to evoke antipathetic feelings):

unappealing, unlikable, unlikeable

WordNet sense 2 (not having an open mind):

closed

WordNet sense 3 (not receptive):

unreceptive

WordNet sense 4 (lacking in sympathy and kindness):

unkindly

WordNet sense 5 (lacking kindness):

unkind

WordNet sense 6 (not agreeing with your tastes or expectations):

disagreeable

WordNet sense 7 (not suitable to your tastes or needs):

uncongenial