faddist

There is a vast difference, however, between the faddist and the genuine health-seeker.

Once a doctor who did not order wine during convalescence was looked upon as a faddist.

He was majoring in sociology through the advice of a faddist uncle who had never seen him.

But unconventional as his views may appear, it must not be thought that Ostwald is a faddist.

Oh, you know what a faddist she is over that Girl Scout organization!