プログレッシブ和英中辞典(第4版)の解説
しんがい【心外】
心外な 〔意外な〕unexpected；〔残念な〕regrettable
彼女があんな男と結婚するとは全く心外だった
It was unthinkable that she should marry such a man.
私が責められるとは心外だ
I don't see why I should be blamed.
心外なうわさを聞いたが本当だろうか
A regrettable rumor reached my ears ― I wonder if it is true.
心外なことに首相は被災地を素通りした
Much to our vexation [chagrin], the Prime Minister passed by the stricken area without stopping.
君が失敗するとは心外だ
I don't understand how you could have failed [《口》 muffed it]!