Not amiable, in senses of that adjective. Of things (chiefly abstract) or acts.

That does not deserve or inspire love; unattractive, unappealing.

Unlovely.

Not congenial; uncongenial.

Const. to, with. †Also as adv., in disagreement, at variance with.

Not suited or agreeable to one's temperament; not to one's taste.

(un-, prefix1 affix 4.)