expression, ichidan verb
knit one's brows; frown; raise one's eyebrows
Describes a facial expression of discomfort, unease, disapproval, or mild surprise. The eyebrows are drawn together or raised slightly. Often used in negative contexts.
彼は不快そうに眉をひそめた。
He knitted his brows in discomfort.
その発
She frowned at that remark.