unfathomable
/ˌʌnˈfæðəməbəl/
American
- adj. 难以理解的, 无法解释的
- Definition
- adj. impossible to understand or explain fully
- Example
- The depth of the ocean trench seemed almost unfathomable to scientists.
- 海沟的深度在科学家看来几乎深不可测。