1. 吸引人的：对手rival | 吸引人的intriguing | 旁观者onlooker

2. 激发人兴趣的：- convincing 有说服力的 | - intriguing 激发人兴趣的 | - verifiable 可验证的 (unverifiable不可验证的)

3. 有趣的,迷人的：51. fierce 凶猛的,残忍的 | 53. intriguing 有趣的,迷人的 | 54. retarded 反应迟钝的

4. 引人入胜的;神秘的：Hazard:危害 | Intriguing:引人入胜的;神秘的 | Prevalence:盛行

1. 有趣的;引人入胜的;奇怪的
If you describe something as intriguing, you mean that it is interesting or strange.

e.g. This intriguing book is both thoughtful and informative.
这本引人入胜的书既有思想性又富知识性。

adj

1. capable of arousing interest or curiosity

e.g. our team came up with some most intriguing finds

2. disturbingly provocative

e.g. an intriguing smile

Synonym: challenging