Synonyms and Antonyms of quack

not meeting the proper standards and requirements and training (adj.all)

behave in a certain manner; show a certain behavior; conduct or comport oneself (verb.body)

a licensed medical practitioner (noun.person)

a flamboyant deceiver; one who attracts customers with tricks or jokes (noun.person)

the sudden occurrence of an audible event (noun.event)

express audibly; utter sounds (not necessarily words) (verb.communication)

medical practice and advice based on observation and experience in ignorance of scientific findings (noun.act)

utter quacking noises (verb.communication)

the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases a more.. the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries (noun.act)