Definition of look as if butter wouldn't melt in one's mouth in English:

look as if butter wouldn't melt in one's mouth

informal Appear gentle or innocent while typically being the opposite.
More example sentences
  • At home, he's placid and gentle and happy and looks as if butter wouldn't melt in his mouth.
  • Because, while he may often look as if butter wouldn't melt in his mouth, underneath the boyish appearance and the trappings of trendiness, there is a genuinely steely determination that has to be admired.
  • For all they look as if butter wouldn't melt in their mouths, they're an un-Christian lot.
See parent entry: butter

Definition of look as if butter wouldn't melt in one's mouth in:

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Word of the day vituperate
Pronunciation: vɪˈtjuːpəreɪt
verb
blame or insult (someone) in strong language...