extraneous

Synonyms: accidental additional adventitious beside the point extra foreign immaterial impertinent inadmissible inapplicable inapposite inappropriate incidental inessential needless nonessential off the subject peripheral pointless redundant superfluous supplementary unconnected unessential unnecessary unrelated

Antonyms: appropriate basic essential integral necessary needed pertinent relevant

Synonyms: adventitious alien exotic external extrinsic out of place strange

Antonyms: national native