too big for one's breeches

Thesaurus

Adj.

1.too big for one's breeches - (used colloquially) overly conceited or arrogant; "a snotty little scion of a degenerate family"-Laurent Le Sage; "they're snobs--stuck-up and uppity and persnickety"bigheaded, persnickety, snooty, snot-nosed, snotty, stuck-up, uppishproud - feeling self-respect or pleasure in something by which you measure your self-worth; or being a reason for pride; "proud parents"; "proud of his accomplishments"; "a proud moment"; "proud to serve his country"; "a proud name"; "proud princes"