I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
also know-all ˈ ̷ ̷ˌ ̷ ̷
( plural know-it-alls also know-alls )
: one that rashly and annoyingly claims to know or acts as if knowing all about everything or nearly everything : one to whom nothing new can apparently be told or who views any advice or suggestion from others as of little or no value or as something that had already been considered and acted on or rejected
loud cocky know-it-alls
a humbling enigma for the know-alls — D.B.W.Lewis
II. adjective
also know-all “
Etymology: know-it-all (I) , know-all
: of, relating to, or having the characteristics of a know-it-all
a know-it-all attitude
a know-all manner
should not be so know-it-all about what the Almighty was up to — Gretchen Finletter