fathomless
🇺🇸
/ˈfæðəmləs/
🇬🇧
/ˈfæðəmləs/
adjective
R
extremely deep or profound, difficult to understand or measure
The fathomless depths of the ocean held many mysteries.
海洋深不可测的深处隐藏着许多秘密。
translation
深不可测