inscrutable
Definition
Difficult or impossible to understand or interpret.
日本語 理解するのが難しいまたは不可能
Example
"His inscrutable expression gave no clue to what he was thinking."
Difficult or impossible to understand or interpret.
日本語 理解するのが難しいまたは不可能
"His inscrutable expression gave no clue to what he was thinking."