unlikeable

Adjective

un=like=a=ble

WORDNET DICTIONARY

unlikeable(a = adj.all) unappealing, unlikable, unsympathetic - (of characters in literature or drama) tending to evoke antipathetic feelings; "all the characters were peculiarly unsympathetic"
unlikeable(s = adj.all) unlikable - difficult or impossible to like; "a disagreeable and unlikable old woman"

unlikeable, adj. (also unlikable) not easy to like; unpleasant.

For further exploring for "unlikeable" in Webster Dictionary Online