the lack of a relation of something to the matter at hand
同义词：irrelevancy
irrelevance详细解释
ir.rel.e.vance n.（名词）The quality or state of being unrelated to the matter at hand.不相干性：与所讨论的事物不相干这一性质或状态Something unrelated to the matter at hand.离题：与所讨论的事情不相干的事物
