A fraudulent activity is deliberately deceitful, dishonest, or untrue. fraudulent claims about being a nurse. + fraudulently fraudu·lent·ly The report concludes that I acted neither fraudulently nor improperly. intended to deceive people in an illegal way, in order to gain money, power etc
intended to deceive; "deceitful advertising"; "fallacious testimony"; "smooth, shining, and deceitful as thin ice" - S T Coleridge; "a fraudulent scheme to escape paying taxes"