Test Your Vocabulary

Take Our 10-Question Quiz

Name That Thing

Take our visual vocab quiz

Test Your Knowledge »

True or False?

A quick quiz about stuff worth knowing

Take It Now »

Join Us on FB & Twitter

Get the Word of the Day and More

Facebook | Twitter

contrapositive


con·tra·pos·i·tive

noun \-ˈpä-zə-tiv, -ˈpäz-tiv\

Definition of CONTRAPOSITIVE

: a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem and interchanging them <“if not-B then not-A ” is the contrapositive of “if A then B ”>

First Known Use of CONTRAPOSITIVE

1870

Rhymes with CONTRAPOSITIVE

Browse

Next Word in the Dictionary: contrapposto
Previous Word in the Dictionary: contraposition
All Words Near: contrapositive

Seen & Heard

What made you want to look up contrapositive? Please tell us where you read or heard it (including the quote, if possible).