from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Involving, of the nature of, or being a contradiction. See Synonyms at opposite.
  • adj. Given to contradicting.
  • n. Logic Either of two propositions related in such a way that it is impossible for both to be true or both to be false.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. That contradicts something, such as an argument.
  • adj. That is itself a contradiction.
  • adj. That is diametrically opposed to something.
  • adj. Mutually exclusive.
  • adj. Tending to contradict or oppose, contrarious
  • n. Any of a pair of propositions, that cannot both be true or both be false.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Affirming the contrary; implying a denial of what has been asserted; also, mutually contradicting; inconsistent.
  • adj. Opposing or opposed; repugnant.
  • n. A proposition or thing which denies or opposes another; contrariety.
  • n. propositions with the same terms, but opposed to each other both in quality and quantity.

from The Century Dictionary and Cyclopedia

  • Denying that something stated or approved is completely true; diametrically opposed.
  • Inconsistent; logically antagonistic; incapable of being true together (though both may be false).
  • Synonyms Contrary, Inconsistent, etc. See contrary.
  • n. pl. contradictories (-riz). A proposition of a pair inconsistent with each other, or each of which precisely denies or falsifies the other.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. in disagreement
  • adj. that confounds or contradicts or confuses
  • adj. unable to be both true at the same time
  • adj. of words or propositions so related that both cannot be true and both cannot be false
  • n. two propositions are contradictories if both cannot be true (or both cannot be false) at the same time


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.