know-nothing(redirected from know-nothings)
Also found in: Idioms.
1. A totally ignorant person; an ignoramus.
2. An anti-intellectual.
3. An agnostic.
4. Know-Nothing A member of a political party in the United States during the 1850s that was antagonistic toward recent immigrants and Roman Catholics.
informal derogatory an ignorant person
1. an ignorant or totally uninformed person; ignoramus.
2. (caps.) a member of a U.S. political party of the 1850s, whose aim was to exclude Catholics and the foreign-born from political participation: so called because members professed ignorance of the party's activities.
3. an agnostic.