contrary to one's taste or liking; unpleasant; offensive; repugnant.

unpleasant in manner or nature; unamiable

a thoroughly disagreeable person.

an unpleasant or repugnant circumstance, attribute, thing, etc.

Bent on being cheerful, he suppressed any mention of the disagreeable in our conversation.

disagreeables, the disagreeable aspects of a situation, course of action, etc.

The pleasant features of the arrangement far outweigh the disagreeables.