contradictory

Adjective

• unable to be both true at the same time

• in disagreement
  • the figures are at odds with our findings
    
  • contradictory attributes of unjust justice and loving vindictiveness- John Morley
    

• that confounds or contradicts or confuses

• of words or propositions so related that both cannot be true and both cannot be false
  • `perfect' and `imperfect' are contradictory terms
    

Noun

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

Related words

• Synonyms: 
  mutually exclusive , at odds(p) , conflicting , self-contradictory , confounding