English

Adjective

too big for one's britches ‎(not comparable)

1. (idiomatic) Disturbingly confident, unacceptably cocky.
   • 1989, Edwin M. Reingold, "Hard Times for Teflon Tom," Time, 22 May:

     A diffident, dedicated man, Bradley seemed the personification of rectitude. He never got too big for his britches.

2. Used other than as an idiom: Too large to fit into one's pants.

Synonyms

• too big for one's boots