Thesaurus.com
Dictionary.com
Definitions

inscrutable

[in-skroo-tuh-buhl] / ɪnˈskru tə bəl /
ADJECTIVE
hidden, mysterious; blank
Synonyms
STRONGEST
enigmatic impenetrable incomprehensible unfathomable unintelligible
WEAK
ambiguous arcane cabalistic deadpan difficult inexplicable mysterial mystic poker-faced secret sphinxlike unaccountable undiscoverable unexplainable unknowable unreadable
Antonyms
STRONGEST
clear comprehensible fathomable intelligible understandable
WEAK
evident obvious plain

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pegula described the inscrutable Rybakina as "cool as a cucumber".

From Barron's • Jan. 30, 2026

Ramsey scored both goals in an impressive 2-0 victory to seal automatic qualification, and the euphoric scenes at Cardiff City Stadium moved the usually inscrutable Giggs to tears.

From BBC • Nov. 17, 2025

The limits of human understanding are probed as a sacrificial figure challenges the inscrutable order of the universe.

From Los Angeles Times • Nov. 13, 2025

You do not want to Google yet another inscrutable proposition about dialysis regulations.

From Slate • Oct. 31, 2025

Kaz stood like a stone, his expression inscrutable.

From "Six of Crows" by Leigh Bardugo

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.