unprovoked
柯林斯词典
1. ADJ If someone makes an unprovoked attack, they attack someone who has not tried to harm them in any way. (攻击)无缘故的
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unprovoked /ʌnprəˈvəʊkt/
剑桥词典
- If an unpleasant action or remark is unprovoked, it has not been caused by anything and is therefore unfair .
（令人不快的言行）无端的，无缘无故的
an unprovoked attack on her character 对她人格的无端攻击 返回 unprovoked