[ kon-truh-puh-zish-uhn ]
See synonyms for contraposition on
  1. placement opposite or against.

  2. opposition, contrast, or antithesis.

  1. Logic. the inference drawn from a proposition by negating its terms and changing their order, as by inferring “Not B implies not A” from “A implies B.”

Origin of contraposition

First recorded in 1545–55, contraposition is from the Late Latin word contrāposition- (stem of contrāpositiō). See contra1, position

Words Nearby contraposition Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use contraposition in a sentence

British Dictionary definitions for contraposition


/ (ˌkɒntrəpəˈzɪʃən) /

  1. the act of placing opposite or against, esp in contrast or antithesis

  2. logic the derivation of the contrapositive of a given categorial proposition

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012