IPA: /ʌnˈlaɪkəbl/
KK: /ʌnˈlaɪkəbl/
Not easy to like or be friendly towards; often causing dislike or disapproval.
His rude behavior made him quite unlikable to his classmates.
Unlikable → It is formed from "un-" (meaning not) and "likable" (from the root "like" which comes from Old English "lician", meaning to please or be agreeable, and the suffix "-able" meaning capable of). The word "unlikable" means not capable of being liked or not pleasing.
Think of 'not' ('un-') being added to 'pleasing' ('likable') — that's why unlikable means something that is not pleasing.