infamously From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsadverbIn an infamous manner.Famously, known for being. Related wordsSynonymsfamouslynotoriouslyignominiouslyscandalouslyshamefullydisgracefullyignoblyherostraticallyungloriouslyingloriouslycondemnablyflagitiouslyaccursedlydamnouslyheinouslyhorrendously References Wiktionary — infamously Wikipedia — infamously