Definition of "know-nothing" []

• A totally ignorant person; an ignoramus. (noun)
• An anti-intellectual. (noun)
• An agnostic. (noun)
• A member of a political party in the United States during the 1850s that was antagonistic toward recent immigrants and Roman Catholics. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This is just reinforcing the stereotype that the California legislature and courts are know-nothing reactionaries that are way behind the times."
• "Some know-nothing had fixed up a bad batch of plaster, which dried, separated into pieces the size of an Oreo, and finally succumbed to the forces of Newton."
• "Cause the only evidence I've seen of this is from that video of the action figures with the names pronounced by that know-nothing marketing lady."