contrapositive: Meaning and Definition of

con•tra•pos•i•tive

Pronunciation: (kon"tru-poz'i-tiv), [key]
— Logic. Logic.
—adj.
  1. of or pertaining to contraposition.
—n.
  1. a contrapositive statement of a proposition.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.