incapacitate v. + Add to list US //ˌɪnkəˈpæsɪˌteɪt// UK //ɪnkəpˈæsɪtˌeɪt// in·ca·pac·i·tate SynonymsAntonymsEtymology Synonyms disabledisenablehandicapinvalid Antonyms enableOrigin Mid-17th century, from incapacity + -ate (verb-forming suffix). Compare French incapaciter.