Added 9 October 2026 nonrational adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about nonrational at Wordnik → Where our words come from → Not based on reason. there is a great deal that is nonrational in modern culture Obtained through intuition rather than from reasoning or observation. Origin From non- + rational. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: unlogicalillogicalirrationalintuitivearationalvaluationalrationalnonlogicalnonmentalsubpersonalnonconsciousnonmoral Back to today's word