motiveless
['məutivlis]
adj. 无动机的, 无目的的, 妄动的
例句与用法：
He showed his sinister motive at last.
他终于露出了他那邪恶的用心。
Can we assign jealousy as the motive for the crime?
我们能否确定这一犯罪动机是出于嫉妒?
The police have excluded robbery as a motive for the murder.
警方已排除该谋杀案中有抢劫的动机。
Her prime motive was personal ambition.
她的主要动机是为了实现个人的志向。
I don't understand what his motive is.
我不知道他的动机是什么。
His sole motive is to make more money.
他唯一的动机就是多赚钱。
词形变化：
动词过去式: motived | 动词过去分词: motived | 动词现在分词: motiving | 动词第三人称单数: motives |
详细释义：
a.
无动机的; 无目的的
a motiveless malignity
一种无动机的恶意