Added 10 October 2026 rattiness noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about rattiness at Wordnik → Where our words come from → The quality of being ratty. Origin From ratty + -ness. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: rattishnessratnessrattlingnessruttinessratchetnessrathoodrabbitinessrottennessracketinessratabilityragginessruffliness Back to today's word