Added 9 October 2026 undesirable /ˌʌndɪˈzaɪɹəbəl/ noun Categories: PeopleUncommon Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about undesirable at Wordnik → Where our words come from → One whose presence is undesirable. rounding up vagrants and drunks and other undesirables adjective Not wanted. undesirable impurities in steel Not worthy of being chosen (especially as a spouse). Related Words: unsuitableunenviableunwantedineligibleunfavorableunsounduntowardinopportuneimproperuntimelyinappropriateill-timed Back to today's word