ichidan verb, transitive verb
bristle; ruffle up; raise (hair, fur, eyebrows)
Used for making hair, fur, or eyebrows stand on end, often from anger, fear, or excitement.
猫が背中の毛を逆立てた。
The cat bristled the fur on its back.
彼は怒ってまゆを逆
He raised his eyebrows in anger.