English Dictionary

butter wouldn't melt in someone's mouth

フレーズ

慣用表現

(idiomatic) The identified person appears to be benign, mild-mannered, or calm (but with an integral suggestion that, to the contrary, he or she really is untrustworthy, disagreeable, or mean-spirited).

日本語の意味

表面上はとても穏やかで品が良い印象を与えるが、実際は不誠実で意地悪な一面を持つ人物を指す。 / 見かけはおとなしく無邪気な印象を与えるが、裏では計算高く信用できない可能性がある人物を表す。

She kept smiling and acting as if butter wouldn't melt in someone's mouth, yet she was the one who leaked the confidential report.

彼女はずっと笑顔で一見無害そうに振る舞っていたが、実際には機密報告書を漏らした本人だった。

意味（1）

(idiomatic) The identified person appears to be benign, mild-mannered, or calm (but with an integral suggestion that, to the contrary, he or she really is untrustworthy, disagreeable, or mean-spirited).

Col. Why, they say she's one of the chief toasts in town. Lady S. Ay, when all the rest are out of it. Miss. Well; I wouldn't be as sick as she's proud for all the world. Lady A. She looks as if butter wouldn't melt in her mouth but, I warrant, cheese won't choke her. . . . Col. I can't pardon her for her rudeness to me.

意味（2）

(idiomatic) The identified person is prim and proper, standoffish, cool, or dispassionate.

All unmarried women are necessarily in the market; but if they behave themselves properly they make no signs. Now there was Griselda Grantly; of course she intended to get herself a husband, and a very grand one she has got: but she always looked as though butter would not melt in her mouth.