Added 9 October 2026 stainful adjective Categories: Obscure Words adjective ! Definition from Wiktionary (CC BY-SA). More about stainful at Wordnik → Where our words come from → Covered in stains; stained. Origin From stain + -ful. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: grimystainedblotchyspottedmudstainedfilthymilkstainedmudcoveredtearstainedstreakedbesmearedmoldy Back to today's word