vitiate v. + Add to list US //ˈviʃɪˌeɪt// UK //vˈɪʃɪˌeɪt// vi·ti·ate Archaic SynonymsAntonymsEtymology Synonyms corruptdebasedebauchdemoralizedepravemisdirectpervertprofanesubvert Antonyms validateOriginLATvitiātus→ENvitiate PIE word *dwóh₁ From Latin vitiātus, the perfect passive participle of vitiō (“damage, spoil”), from vitium (“vice”).