unprovoked

unprovoked

英[ˌʌnprəˈvəʊkt]美[ˌʌnprəˈvoʊkt]

adj.（尤指暴力言行）未受招惹而自发的，无缘无故的；

例句

a totally unprovoked attack无端攻击

Her angry outburst was totally unprovoked.她的暴跳如雷完全是无理取闹。

Stephen was stabbed to death in an unprovoked attack nearly five months ago.斯蒂芬在近5个月前无故遭到袭击，被捅死了。

an act of unprovoked aggression无端的侵犯行为

柯林斯高阶英汉双解学习词典释义

ADJ

（攻击）非因触犯而发生的，无缘无故的

If someone makes an unprovoked attack, they attack someone who has not tried to harm them in any way.

英汉词典释义

adj.

(尤指暴力言行)未受招惹而自发的,无缘无故的

英英词典释义

Adjective

1. occurring without motivation or provocation;