Added 9 October 2026 unceremonious adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about unceremonious at Wordnik → Where our words come from → Without ceremony or formality. an unceremonious speech Without due formalities. unceremonious dismissal from office Related Words: unceremonialinformaldiscourteousejectmentnonceremonialunsolemnunsanctimoniousuncensoriousnonsanctimoniousunritualisticunritualizedunceremented Back to today's word