extraneous

Adjective
  1. Not pertinent to the matter under consideration (synset 301983596)
    "an issue extraneous to the debate"; "the price was immaterial"; "mentioned several impertinent facts before finally coming to the point"
  2. Not essential (synset 301353342)
    "the ballet struck me as extraneous and somewhat out of keeping with the rest of the play"
  3. Not belonging to that in which it is contained;
    Introduced from an outside source (synset 302124744)
    "water free of extraneous matter"; "foreign particles in milk"
  4. Coming from the outside (synset 301353073)
    "extraneous light in the camera spoiled the photograph"; "relying upon an extraneous income"; "disdaining outside pressure groups"

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