know-nothing

 
Pronunciation: /ˈnəʊnʌθɪŋ/

noun

  • 1an ignorant person.
  • 2 (Know-Nothing) North American historical a member of a political party in the US, prominent from 1853 to 1856, which was antagonistic towards Roman Catholics and recent immigrants, and whose members preserved its secrecy by denying its existence.

Derivatives

know-nothingism

noun