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

adj unable to be both true at the same time

Synonyms:
mutually exclusive
incompatible
not compatible

adj 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

adj in disagreement

“" contradictory attributes of unjust justice and loving vindictiveness"- John Morley”
Synonyms:
at odds, conflicting, self-contradictory
inconsistent
displaying a lack of consistency

adj that confounds or contradicts or confuses

Synonyms:
confounding
unsupportive
not furnishing support or assistance

n two propositions are contradictories if both cannot be true (or both cannot be false) at the same time

Type of:
logical relation
a relation between propositions

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