fastidious about one’s needs or requirements; hard to please: he is very fussy about what he eats
showing excessive or anxious concern about detail: Eleanor patted her hair with quick, fussy movements
full of unnecessary detail or decoration: I hate fussy clothes
Phrases
not be fussy
informal not be very concerned about something, especially a decision that is to be made: he’s quite welcome to do that because the rest of us are not fussy