プログレッシブ和英中辞典(第4版)の解説
せんえつ【×僭越】
presumption; presumptuousness; audacity
会長に直接進言するとは僭越であった
「It was presumptuous of him [He was so audacious as] to make a proposal to the president directly.
彼は僭越にも私を若造扱いした
He had the cheek [audacity, nerve, 《口》 gall] to treat me as if I were an errand boy.
僭越ながら一言ごあいさつを述べさせていただきます
Allow me to say a few words of greeting.