dupe 0 antonyms and opposites of dupe. Verb — To trick or deceive someone, usually to gain something from them. Synonyms for dupe chump chumpion cousin cull cully dotterel easy mark fall guy fish gudgeon gull juggins live one mark mug muggins pigeon rube sap saphead schlemiel simp sheep Simple Simon soft touch steamer stiff stooge sucker ← Back to the full definition of dupe
