know-all

[ noh-awl ]

/ ˈnoʊˌɔl /

a know-it-all.

Origin of know-all

First recorded in 1880–85

This time the hunchback, in his favorite character of know-all, took the lead.

The Duke's Motto |Justin Huntly McCarthy
Then the witnesses were called, and Mr. Know-All did first give in his evidence against him.

The Holy War made by Shaddai upon Diabolus |John Bunyan
The place had a know-all air blended with a chaste exclusiveness.

Married Life |May Edginton
You find out for yourself, if you're so clever, Mr. Know-all; I'm off.

Adrien Leroy |Charles Garvice

Come, Mr. Know-All, look upon the prisoner at the bar; do you know him?

The Holy War made by Shaddai upon Diabolus |John Bunyan

know-all

informal, derogatory a person who pretends or appears to know a great deal