Home › Words › O › oysterishnessoysterishnessoysterishness means quality of being oysterish.Among words judged in Lexicurio's Arena, oysterishness ranks #36,621 of 42,752 for Qualifying.EtymologyFrom oysterish + -ness.nounQuality of being oysterish.Definitions & examples from Wiktionary (CC BY-SA 3.0).