Synonyms and Antonyms of quack
one who makes false claims of identity or expertise
- Don't bother to see that guy, as I've heard he's a quack with no actual training.
charlatan, fake, faker, fraud, hoaxer, humbug, impostor (or imposter), mountebank, phony (also phoney), pretender, ringer, sham
copycat, imitator, impersonator, mimic
actor, bluffer, counterfeiter, deceiver, dissembler, duper, feigner, misleader, operator, trickster
cozener, defrauder, dodger, scammer, sharper, sharpie (or sharpy), skinner, swindler
ace, adept, authority, crackerjack (also crackajack), expert, maestro, master, past master, professional, virtuoso, whiz, wizard