Word parts in- + ability Pronunciation IPA (key): /ˌɪnəˈbɪlɪti/ Audio (US)(file) Hyphenation: in‧abil‧i‧ty Noun Singular inability Plural inabilities (countable) An inability is something that you can not do. Antonym: ability The inability to play baseball was a problem during gym.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads