薄笑い

うすわらい【薄笑い】

faint smile 〖C〗かすかな笑い; sardonic smile 〖C〗 皮肉な笑い， せせら笑い.

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うすわらい【薄笑い】

a disagreeable [an unpleasant, a supercilious] smile; a slight [thin] smile

●薄笑いを浮かべる smile disagreeably [unpleasantly] (at sb); give (sb) a thin smile

・彼は友達が先生に怒られているのを柱の陰から薄笑いを浮かべながら見ていた. While his friend was being scolded by the teacher he watched from behind a pillar with a faint [disagreeable] smile on his face.