Antonyms of noun equivalence

1 of 3 senses of equivalence

Sense 2
equivalence -- (essential equality and interchangeability)
       Antonym of nonequivalence (Sense 1)
      => nonequivalence -- (not interchangeable)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun equivalence

3 senses of equivalence

Sense 1
equality, equivalence, equation, par -- (a state of being essentially equal or equivalent; equally balanced; "on a par with the best")
       => status, position -- (the relative position or standing of things or especially persons in a society; "he had the status of a minor"; "the novel attained the status of a classic"; "atheists do not enjoy a favorable position in American life")

Sense 2
equivalence -- (essential equality and interchangeability)
       => equality -- (the quality of being the same in quantity or measure or value or status)

Sense 3
comparison, compare, equivalence, comparability -- (qualities that are comparable; "no comparison between the two books"; "beyond compare")
       => likeness, alikeness, similitude -- (similarity in appearance or character or nature between persons or things; "man created God in his own likeness")