Definition of "quackish" []

• Like a quack (fraudulent doctor), or characteristic of quackery. (adjective)

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• "His religious interview subjects on his world-tour range from the brilliant (Dr. Francis Collins, a scientist on the human genome project and an evangelical Christian), the bizarre (the actor who plays Jesus at The Holy Land Experience theme park in Orlando), the quackish (Jose Luis de Jesus Miranda, who claims to be a reincarnation of Christ), and the downright frightening (Aki Nawaz, aka Propa-Gandhi, a Muslim British rapper who glorifies suicide bombing)."
• "The devil really will be in the details here -- as I said in the prior post, if this is done wrong, it could actually aid the industry because its promoters could tell parents that it is regulated and that this prevents the abuse and fraudulent or quackish practices of the past."
• "In what is probably the most notorious case of fraudulent and quackish over-treatment, one woman and her children were held for years in Chicago's Rush-Presbyterian Hospital, diagnosed as having been victims of "Satanic Ritual Abuse.""