Definition of "Contradictory" :

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

adjective: unable for both to exist or be true at the same time

adjective: in disagreement

"Contradictory attributes of unjust justice and loving vindictiveness."

adjective: that confounds or contradicts or confuses

adjective: of words or propositions so related that both cannot be true and both cannot be false

"Perfect' and imperfect' are contradictory terms."