形容词深得无法到达底部的; 高深莫测的，难以了解的; 不测; 叵测

1. 深不可测的：Exotic:奇异的 | Unfathomable:深不可测的 | Logic:逻辑的

2. 难测的：难操纵的unmanageable | 难测的unfathomable | 难缠的人Momus

3. 深不可测的,无底的,难解的：dominion 统治,领地,范围 | dole 少量的施舍 | unfathomable 深不可测的,无底的,难解的

4. 深不可测的,无底的：rim: 边缘 | unfathomable: 深不可测的,无底的 | abyss: 深渊

1. （事物）高深莫测的，深奥的
If you describe something as unfathomable, you mean that it cannot be understood or explained, usually because it is very strange or complicated.

e.g. For some unfathomable reason, there are no stairs where there should be...
不知什么原因，本该有楼梯的地方却没有。
e.g. How odd life was, how unfathomable, how profoundly unjust.
生活多么离奇，多么莫测，多么不公啊！

2. （人或表情）难以捉摸的
If you use unfathomable to describe a person or the expression on their face, you mean that you cannot tell what they are thinking or what they intend to do.

e.g. ...a strange, unfathomable and unpredictable individual.
一个古怪、难以捉摸、反复无常的人
e.g. ...the dark eyes that right now seemed opaque and unfathomable.
此刻显得浑浊莫测的黑眼睛

adj

1. impossible to come to understand

2. resembling an abyss in depth
so deep as to be unmeasurable

e.g. the abyssal depths of the ocean

Synonym: abysmalabyssal

3. of depth
not capable of being sounded or measured