Dictionary

know–nothing

noun know–noth·ing \ˈnō-ˌnə-thiŋ\

: a person who lacks intelligence or knowledge : a stupid or ignorant person

Full Definition of KNOW-NOTHING

1
a :  ignoramus
b :  agnostic
2
capitalized K&N :  a member of a 19th century secret American political organization hostile to the political influence of recent immigrants and Roman Catholics
know–nothing adjective
ADVERTISEMENT

First Known Use of KNOW-NOTHING

1827

Browse

Next Word in the Dictionary: know–nothingismPrevious Word in the Dictionary: knownAll Words Near: know-nothing
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears