contradictory

A contradictory statement is one that says two things that cannot both be true. An example: My sister is jealous of me because I'm an only child.

Contradictory is related to the verb contradict, which means to say or do the opposite, and contrary, which means to take an opposite view. When witnesses give contradictory accounts of crimes—one saying the assailant had a knife and the other a gun—police officers often assume that at least one of the witnesses is lying.

Definitions of contradictory
  1. adjective
    unable to be both true at the same time
    synonyms: mutually exclusive
    incompatible
    not compatible
  2. adjective
    of words or propositions so related that both cannot be true and both cannot be false
    “`perfect' and `imperfect' are contradictory terms”
    Synonyms:
    antonymous
    of words: having opposite meanings
  3. adjective
    in disagreement
    “" contradictory attributes of unjust justice and loving vindictiveness"- John Morley”
    synonyms: at odds, conflicting, self-contradictory
    inconsistent
    displaying a lack of consistency
  4. adjective
    that confounds or contradicts or confuses
    synonyms: confounding
    unsupportive
    not furnishing support or assistance
  5. noun
    two propositions are contradictories if both cannot be true (or both cannot be false) at the same time
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    type of:
    logical relation
    a relation between propositions
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