disinclination has 4 distinct synonyms spread across 1 of its 2 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is inclination.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
that toward which you are inclined to feel dislike
“his disinclination for modesty is well known”
a certain degree of unwillingness
“a reluctance to commit himself”
Synonyms, antonyms and the broader and narrower relations for disinclination come from Princeton University’s WordNet. Full sources and licences.