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contradictory is an adjective and noun meaning "of words or propositions so related that both cannot be true and both cannot be false". It carries 5 recorded senses.
of words or propositions so related that both cannot be true and both cannot be false
“`perfect' and `imperfect' are contradictory terms”
that confounds or contradicts or confuses
in disagreement
“the figures are at odds with our findings”
“contradictory attributes of unjust justice and loving vindictiveness”
unable for both to exist or be true at the same time
two propositions are contradictories if both cannot be true (or both cannot be false) at the same time
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for contradictory come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.