adjective

inscrutable

in-SKROO-tuh-buhl/ɪnˈskruːtəbl/

Impossible or very difficult to understand or interpret.

The player's inscrutable expression leaves the opponent unable to read his intentions.

An unreadable poker face: a player remains completely impassive while his opponent studies his face with visibly baffled uncertainty.

Etymology

inLatinnot

+scrutLatinto examine, search

+ableLatincapable of being

The pieces suggest something that cannot be uncovered by searching or examination. That idea extends to a meaning, expression, or motive that resists understanding even when closely studied.

In context

Allellu75:59

This intelligence has an inscrutable connection with the material part of the universe, perhaps resembling the connection equally unsearchable that subsists between the mind and body of man

Proofs of a Conspiracy [Part 1 of 2] by John Robison | Full Audiobook, Read-Along

More examples

His motives remain inscrutable even to his closest friends.
The software displays an inscrutable error message.
She answers with an inscrutable smile.

Forms

inscrutable

inscrutably adverb — In a way that resists interpretation.

inscrutability noun — The quality of being difficult to understand.

Similar words

enigmatic: Suggests a puzzling mystery that invites curiosity or interpretation.
unfathomable: Emphasizes something beyond the limits of understanding.
opaque: Often describes language or explanations that fail to communicate clearly.