Added 9 October 2026 irrelevency noun noun ! Definition from Wiktionary (CC BY-SA). More about irrelevency at Wordnik → Where our words come from → Misspelling of irrelevancy. Related Words: irreplacebilityirreversabilityincompatabilityidiosyncracityintensivityuncertainityacceptibilitysignifigancemispellingrepresentivityniftynessspecifity Back to today's word