形容词
1. 无关的；不必要的
Extraneous things are not relevant or essential to the situation you are involved in or the subject you are talking about.
1. coming from the outside
e.g. extraneous light in the camera spoiled the photograph
relying upon an extraneous income
disdaining outside pressure groups
2. not essential
e.g. the ballet struck me as extraneous and somewhat out of keeping with the rest of the play
3. not pertinent to the matter under consideration
e.g. an issue extraneous to the debate
the price was immaterial
mentioned several impertinent facts before finally coming to the point
Synonym: immaterialimpertinentorthogonal
4. not belonging to that in which it is contained
introduced from an outside source
e.g. water free of extraneous matter
foreign particles in milk
Synonym: foreign