in·scru·ta·ble
in-ˈskrü-tə-bəl 
: not readily investigated, interpreted, or understood : mysterious
an inscrutable smile
inscrutable motives
in·scrutability
(ˌ)inzˌkrütəˈbilətē
ən-,
-nˌsk-,
-ütə-,
-lətē,
-i
: the quality or state of being inscrutable
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Scrutinizing the inscrutable may be futile: even close scrutiny can fail to decipher it. Scrutinizing the scrutable, on the other hand, is likely to yield some understanding. All of these scrut- words have the same Latin root: scrutari, meaning “to search or examine.” While scrutiny, scrutinize, and inscrutable all prove themselves useful in everyday discourse, English speakers don’t tend to call much on scrutable, which functions as a synonym of comprehensible.
Synonyms of inscrutable
Relevance
Adjective
Examples of inscrutable in a Sentence
Adjective
Supersymmetry is a magic mirror, and everything in what we imagine to be the real world has its ghostly, inscrutable mirror image.
—
Ian Stewart, Prospect, September 2003
Of all the myths that have grown up around Alan Greenspan, the most powerful is the idea that he's willfully inscrutable.
—James Surowiecki, New Yorker, 22 Jan. 2001
That wily politicians might adopt Franklin's distinction between appearance and reality to become inscrutable confidence men did not seem to trouble him.
—John H. Summers, Journal of American History, December 2000
an inscrutable work of art
He was a quiet, inscrutable man.
Ian Stewart, Prospect, September 2003
Of all the myths that have grown up around Alan Greenspan, the most powerful is the idea that he's willfully inscrutable.
—James Surowiecki, New Yorker, 22 Jan. 2001
That wily politicians might adopt Franklin's distinction between appearance and reality to become inscrutable confidence men did not seem to trouble him.
—John H. Summers, Journal of American History, December 2000
an inscrutable work of art
He was a quiet, inscrutable man.
Recent Examples on the Web
Simon Button,
Variety,
16 June 2026
The language switch has done nothing to lessen its global appeal, as a quick perusal of the YouTube comments suggests, though there are some jokes Jakubović acknowledges would be inscrutable outside Bosnia.
—
ABC News,
12 June 2026
In my fiction, my grandfather was no longer an inscrutable ghost, but a character with definable flaws, who did things in an order that, despite whatever twists and subversions, resolved into meaning.
—
Literary Hub,
10 June 2026
Something inscrutable flashes behind those keen hazel eyes.
—
Shyla Watson,
PEOPLE,
5 June 2026
See All Example Sentences for inscrutable
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Adjective
In the show, Morrissey plays headmaster Michael Polly, who becomes the chief suspect when his wife goes missing and who remains inscrutable for most of the six episodes.
—
Simon Button,
Variety,
16 June 2026
The language switch has done nothing to lessen its global appeal, as a quick perusal of the YouTube comments suggests, though there are some jokes Jakubović acknowledges would be inscrutable outside Bosnia.
—
ABC News,
12 June 2026
In my fiction, my grandfather was no longer an inscrutable ghost, but a character with definable flaws, who did things in an order that, despite whatever twists and subversions, resolved into meaning.
—
Literary Hub,
10 June 2026
Something inscrutable flashes behind those keen hazel eyes.
—
Shyla Watson,
PEOPLE,
5 June 2026
See All Example Sentences for inscrutable
Cite this Entry
“Inscrutable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inscrutable. Accessed 25 Jun. 2026.
Copy CitationKids Definition
inscrutable
adjective
in·scru·ta·ble
in-ˈskrüt-ə-bəl
: not easily understood : mysterious
an inscrutable expression
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