Home › Words › O › overfatnessoverfatnessoverfatness means the condition of being overfat.Among words judged in Lexicurio's Arena, overfatness ranks #33,700 of 42,820 for Qualifying.EtymologyFrom over- + fatness.nounThe condition of being overfat.Definitions & examples from Wiktionary (CC BY-SA 3.0).