Disagreeable, a.
Etymology: [Cf. F. désagréable.]
1. Not agreeable, conformable, or congruous; Preach you truly the doctrine which you have received, and each nothing that is disagreeable thereunto. Udall.
2. Exciting repugnance; offensive to the feelings or That which is disagreeable to one is many times agreeable to another, or disagreeable in a less degree. Wollaston.
Shades of meaning
Fernald lists disagreeable only as an antonym, under amiable, comfortable, pleasant.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given