motiveless

🇬🇧/ˈməʊtɪvləs/ 🇺🇸/ˈmoʊtɪvləs/ 35GRE
occurring without motivation or provocation; "motiveless malignity" "unprovoked and dastardly attack"- F.D.Roosevelt

adjective [原级]无动机的

It was an apparently motiveless murder.
这显然是一起没有动机的谋杀案。

motiveless

-less ⌜ 表示缺乏或没有某种特性 - indicating the absence or lack of a particular quality ~ ⌟
单词造句: