disenfranchised has 3 distinct synonyms spread across 1 of its 1 sense. 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 enfranchised.
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.
deprived of the rights of citizenship especially the right to vote
“labor was voiceless”
Synonyms, antonyms and the broader and narrower relations for disenfranchised come from Princeton University’s WordNet. Full sources and licences.