Unfathomable
shēn bù kě cè
Explanation is too deep to be measured. It is a metaphor for being unable to grasp the situation of things.
Source: "Roaring Mountain" by Yuan Hongdao of the Ming Dynasty: "The stone bones at the foot of the mountain were collected by craftsmen, and the accumulated water became a pool. The hole you looked into was as black as ink and unfathomable."
The structure is more formal.
Usage refers to being uncertain about the situation of things. Generally used as predicate, attributive, and adverbial.
Correct pronunciation; cannot be pronounced as "chè".
Distinguish the shape test; cannot write "strategy".
The synonyms of "inscrutable"
The antonyms are clear at a glance
Analysis ~ Different from "inscrutable": ~ focuses on describing spatial distance; "inscrutable" "Focuses on describing knowledge and demeanor.
Example: Professor Chen’s profound professional knowledge;~; impressed the students.