expression, ichidan verb
grimace; frown; make a wry face
Describes twisting or distorting one's facial expression, often due to pain, disgust, or displeasure.
彼は苦い薬を飲んで顔をしかめた。
He grimaced after taking the bitter medicine.
その嫌な臭いに
She couldn't help but frown at the unpleasant smell.