EXTRANEOUS
external, extraneous, outside
(adjective) coming from the outside; “extraneous light in the camera spoiled the photograph”; “relying upon an extraneous income”; “disdaining outside pressure groups”
extraneous
(adjective) not essential; “the ballet struck me as extraneous and somewhat out of keeping with the rest of the play”
extraneous, immaterial, impertinent, orthogonal
(adjective) 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”
extraneous, foreign
(adjective) not belonging to that in which it is contained; introduced from an outside source; “water free of extraneous matter”; “foreign particles in milk”
Source: WordNet® 3.1
Etymology
Adjective
extraneous (not comparable)
Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign
Not essential or intrinsic
Synonyms
• (not belonging to): additional, alien, foreign, intrusive; See also foreign
• (not essential): superfluous, extra; See also extrinsic
Source: Wiktionary
Ex*tra"ne*ous, a. Etym: [L. extraneus, from extra. See Extra,
Strange.]
Definition: Not belonging to, or dependent upon, a thing; without or beyond
a thing; not essential or intrinsic; foreign; as, to separate gold
from extraneous matter.
Nothing is admitted extraneous from the indictment. Landor.
– Ex*tra"ne*ous*ly, adv.
Source: Webster’s Unabridged Dictionary 1913 Edition