A person who follows or promotes fads; someone who is excessively enthusiastic about temporary fashions or trends.
From 'fad' + '-ist' suffix, which denotes a person who practices or advocates for something. The '-ist' suffix derives from Latin and Greek and is extremely productive in English.
Calling someone a 'faddist' is inherently critical—unlike 'fashionista' which celebrates trend-following, 'faddist' implies gullibility and lack of authentic taste, showing how the same behavior gets judged differently depending on perspective.
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