motiveless
['məutivlis]
adj. 无动机的
同义词
参考例子
1.Then, by one of those convulsive, motiveless actions by which the wretched leap from temporary sorrow to life –long misery, she determined to marry Adam.
后来，她采取了一个不幸者常常采取的那种快刀斩乱麻德行动：嫁给了亚当，从而陷进了终身的痛苦，为的不过是跳出那一时的悲伤。
2.Behind Dhruva's devotion there was desire. He practised austerities to gain his father's kingdom. But Prahlada's love for God was motiveless-a love that sought no return.
陀鲁婆虔诚的背后是欲望。他为了得到父亲的王国而实践苦行，但帕拉达对神的爱是毫无动机――一种不求回报的爱。
3.Moreover, players with softball experience showed lower self-determination, higher external control motivation and more motiveless willingness toward baseball than those without softball experience.
同样地，在自觉能力高的群体中，有垒球经验者也显示出较高的无动机；
英文解释
adj.
1.occurring without motivation or provocation
网络释义
motiveless
无动机的; 无动机;
aimless hit-or-miss motiveless objectless purportless purposeless
无目的的;