updates | April 07, 2026 Definitions of unproportional - OneLook Definitions from Wiktionary (unproportional)▸ adjective: Synonym of disproportionateequiproportionate, disbalanced, maladaptative, illogic, contradictorial, inoptimal, uneffective, unsensitive, irrealizable, overcontiguous, more...▸ Words similar to unproportional▸ Usage examples for unproportional▸ Idioms related to unproportional▸ Civic discussion about unproportional (New!)▸ Popular nouns described by unproportional▸ Words that often appear near unproportional▸ Rhymes of unproportional▸ Invented words related to unproportional