Antonyms of noun relevance

1 sense of relevance

Sense 1
relevance, relevancy -- (the relation of something to the matter at hand)
       Antonym of irrelevance (Sense 1)
      => irrelevance, irrelevancy -- (the lack of a relation of something to the matter at hand)

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

1 sense of relevance

Sense 1
relevance, relevancy -- (the relation of something to the matter at hand)
       => connection, connexion, connectedness -- (a relation between things or events (as in the case of one causing the other or sharing features with it); "there was a connection between eating that pickle and having that nightmare")