desirous adj. + Add to list US //dɪˈzaɪɹəs// UK //dɪzˈaɪəɹəs// de·sirous SynonymsAntonymsEtymology Synonyms wishful Antonyms undesirousOriginOFRdesirrous→ME-→ENdesirous From Middle English, from Old French desirrous, from desirrer + -ous.