Pronunciation: (kon"tru-dik'tu-rē), [key]
—adj., n., pl. -ries.
1. asserting the contrary or opposite; contradicting; inconsistent; logically opposite: contradictory statements.
2. tending or inclined to contradict.
Logic.a proposition so related to a second that it is impossible for both to be true or both to be false.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.