quackish in a sentence

Definition

Quackish: resembling or characteristic of a fraud or charlatan, particularly in the context of dubious medical practices or claims.

The quackish remedies advertised in the newspaper promised miraculous cures but lacked any scientific backing.
His quackish demeanor made it difficult to take his claims seriously, even though he spoke with great confidence.
The seminar was filled with quackish speakers who touted dubious healing techniques and outrageous health benefits.
She quickly learned to distinguish between legitimate advice and the quackish suggestions offered by self-proclaimed experts.
Despite his quackish approach to medicine, some of his patients remained fiercely loyal, believing in his unconventional methods.