Словарь синонимов английского языка - quack

(n) 1. charlatan, impostor, pretender, fake(r), fraud, Colloq phoney or US also phony: The quack diagnosed Franny as having appendicitis, but it turned out that she was pregnant. -(adj) 2. fake, fraudulent, sham, counterfeit, Colloq phoney or US also phony: Are you still going to see that quack doctor the one who told you do take aspirin to relieve the pain from your ulcer?