The term 'deceptive or fraudulent' can be summarized by two crossword solutions: SCAM (4 letters) and TRICKY (6 letters). SCAM is a term used to describe a fraudulent or deceptive business practice, often involving the promise of goods, services, or money with no intention of delivering them. TRICKY is an adjective used to describe something that is difficult to understand or deal with due to its complexity or deceptiveness. Both terms are used to describe activities that are intended to deceive or defraud someone.