IPA: /ˈfædɪst/
KK: /ˈfædɪst/
A person who is very enthusiastic about a trend or fashion, often changing interests quickly as new fads appear.
She is such a faddist, always jumping from one trend to another.
Faddist is derived from the word 'fad' (originating from the late 19th century, possibly a variant of 'faddle', meaning to dally or waste time) combined with the suffix '-ist' (meaning a person who practices or is concerned with something). A faddist is a person who is excessively enthusiastic about a particular fad or trend.
Think of someone who is very enthusiastic about a 'fad' — the '-ist' means they are a person who follows or practices that fad.