noun, noun or participle which takes 'suru', intransitive verb
change in one's looks; change in one's appearance
Describes a noticeable change in facial expression or overall appearance, often due to emotion, age, or circumstance.
彼女は怒って面変わりした。
Her expression changed when she got angry.
久しぶりに会ったら、彼はすっかり面変わりし
When I met him after a long time, his appearance had completely changed.