[fad-ist] 
| a person following a fad or given to fads, as one who seeks and adheres briefly to a passing variety of unusual diets, beliefs, etc. |
| fad (fād) n. A fashion that is taken up with great enthusiasm for a brief period of time; a craze. [Possibly from fidfad, fussy person, fussy, from fiddle-faddle.] fad'dism n., fad'dist n., fad'dy adj. |
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