raiment n. + Add to list UK //ɹˈeɪmənt// rai·ment Archaic Literary SynonymsAntonymsEtymology Synonyms arrayclothedressenclothegarbgarmenthabilitateregaliatog Antonyms undressOriginOFRareement→XNOarraiement→MEarayment→ENraiment Aphetized from Middle English arayment, borrowed from Anglo-Norman arraiement and Old French areement, from areer (“to array”). See array.