ADJ [usually ADJ n]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. 无关的;不必要的 [formal]
We ought not to bring in extraneous matters in trying to find a basis for a settlement.
我们努力寻求解决问题的基础时,不应该牵扯进无关的事情。
I can choose to ignore these extraneous thoughts or certainly choose not to act on them.