renunciation n. + Add to list US //ɹɪˌnənsiˈeɪʃən// UK //ɹɪnˌʌnsɪˈeɪʃən// re·nun·ci·a·tion SynonymsEtymology Synonyms apostasydefectionforgoingforswearingrenouncementrepudiationOriginLATrenūntiātiō→ENrenunciation From Latin renūntiātiō. Compare renounce.