• adj. 将来的，较远的；在那边的；隐秘不明的

ulter-, 词源同ultra-,那边的，-or, 比较级后缀，词源同interior. 引申词义隐秘的。

ulterior

ulterior: [17] Ulterior goes back to an unrecorded Latin *ulter ‘distant’ (a relative of ultrā ‘beyond’, source of the English prefix ultra-). Its comparative form was ulterior, which meant literally ‘more distant’. Its superlative form was ultimus, which lies behind English ultimate [17] and ultimatum [18] (etymologically the ‘farthest’ or last point).
=> ultimate, ultimatum

ulterior (adj.)

1640s, "on the other side of," from Latin ulterior "more distant, more remote, farther, on the farther side," comparative of *ulter "beyond" (see ultra-). The sense "not at present in view or consideration" (as in ulterior motives) is attested from 1735.

1. Sheila had an ulterior motive for trying to help Stan.

希拉想帮助斯坦是另有所图的。

来自柯林斯例句

2. She must have some ulterior motive for being nice to me—what does she really want?

她对我这么好，一定别有用心—她到底想干什么呢？

来自《权威词典》

3. She definitely had an ulterior motive in offering to help.

她主动提出帮忙,肯定有不可告人的动机.

来自《简明英汉词典》

4. I want to know what is our ulterior action.

我想要知道下一步的行动是什么.

来自《简明英汉词典》

5. I suspect he may have had ulterior motives for being so generous.

我怀疑他如此慷慨大方也许是别有用心.

来自《简明英汉词典》