picky, nitpicky
I'm picky.
Tom es quisquilloso y rara vez prueba algo nuevo.
Tom is picky and rarely tries anything new.
Sé que Tom es quisquilloso con la comida y rara vez prueba algo nuevo.
I know Tom is picky about food and rarely tries anything new.
Él es muy quisquilloso para comer.
He is a very picky eater.
Un árbitro quisquilloso puede arruinar un combate.
A fussy referee can ruin a fight.
You're picky.
Tom es algo quisquilloso.
Tom is a bit fussy.
Tom es quisquilloso.
Tom is fussy.