Antonyms of adj irrelevant

1 sense of irrelevant

Sense 1
irrelevant (vs. relevant) -- (having no bearing on or connection with the subject at issue; "an irrelevant comment"; "irrelevant allegations")

relevant (vs. irrelevant) -- (having a bearing on or connection with the subject at issue; "the scientist corresponds with colleagues in order to learn about matters relevant to her own research")
        => applicable -- (capable of being applied; having relevance; "gave applicable examples to support her argument")
        => germane (predicate) -- (relevant and appropriate; "he asks questions that are germane and central to the issue")
        => pertinent -- (having precise or logical relevance to the matter at hand; "a list of articles pertinent to the discussion"; "remarks that were to the point")

Similarity of adj irrelevant

1 sense of irrelevant

Sense 1
irrelevant (vs. relevant) -- (having no bearing on or connection with the subject at issue; "an irrelevant comment"; "irrelevant allegations")
       => digressive, tangential -- (of superficial relevance if any; "a digressive allusion to the day of the week"; "a tangential remark")
       => extraneous, immaterial, impertinent, orthogonal -- (not pertinent to the matter under consideration; "an issue extraneous to the debate"; "the price was immaterial"; "mentioned several impertinent facts before finally coming to the point")
       => inapplicable, unsuitable -- (not capable of being applied; "rules inapplicable to day students")
       => moot -- (of no legal significance (as having been previously decided))