凶 (xiōng) 的英文是 "violent" 或 "cruel". 这个词来源于中文, 在英文中常用来形容暴力行为或残忍行为. 例如:

He was a violent man, known for his short temper and quick fists. (他是个凶得很的男人，因为他脾气暴躁和拳头快而闻名.)

The murder was a cruel and senseless act. (这起谋杀案是个残忍而毫无意义的行为.)