definition of
extraneous

[1] #1 extraneous s. [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". wn

[2] #2 extraneous s. not essential; "the ballet struck me as extraneous and somewhat out of keeping with the rest of the play". wn

[3] #3 extraneous s. [foreign] not belonging to that in which it is contained; introduced from an outside source; "water free of extraneous matter"; "foreign particles in milk". wn

[4] #4 extraneous s. [external, outside] coming from the outside; "extraneous light in the camera spoiled the photograph"; "relying upon an extraneous income"; "disdaining outside pressure groups". wn