Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
inscrutable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "inscrutable" is correct and usable in written English.
It can be used to describe something that is difficult to understand or interpret, often referring to a person's expression or a situation. Example: "Her inscrutable smile left everyone wondering what she was really thinking."
✓ Grammatically correct
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
They have come to this muddy corner of County Wicklow to record their new album – spurred on by their obsessive, inscrutable, fibreglass-headed leader.
News & Media
On Tuesday morning, in the face of defeat, a member of Goodluck Jonathan's party issued accusations of bias, but Jega remained inscrutable.
News & Media
As I sit, worrying silently beneath the inscrutable scrutiny of my dentist, I have a vague understanding that things may have changed since my last visit to the chair.
News & Media
She captured Francis Bacon's anxious restlessness, Orson Welles's intensity, the young David Hockney's emerging dandyism, Björk's antic imagination and Samuel Beckett's inscrutable gaze.
News & Media
In the late 1930s, he achieved great success churning out a series of mediocre if charming crime films, as the inscrutable Japanese detective, Mr Moto.
News & Media
Our first trip to Japan performing Thick as a Brick to inscrutable, unflinching observers left us longing for the warm and more comprehensible sights and sounds of Europe.
News & Media
Storm Thorgerson could be inscrutable, grand and archly funny – all qualities that placed him some distance from the music industry's standard mixture of flimsy bonhomie and superficiality.
News & Media
In all this, perhaps what baffles me most is the fact that video games are still considered the blood-splattered playground of the inscrutable yoof.
News & Media
The camera cuts to Algeria manager Vahid Halilhodzic, who is sitting on his bench looking most inscrutable.
News & Media
But so far their voices have been drowned out by arguments about the message that "we" should have handed down to "them" – the remote and inscrutable tribe known as the electorate.
News & Media
No one can be trusted with powers as wide and inscrutable as these.
News & Media
Expert writing Tips
Best practice
When describing systems or processes, "inscrutable" suggests complexity beyond comprehension.
Common error
While "inscrutable" is a valid word, it can sound overly formal or pretentious in casual conversation. Opt for simpler alternatives like "unclear" or "hard to understand" in informal settings.
Source & Trust
93%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The adjective "inscrutable" functions primarily to describe something that is impossible to understand or interpret. Ludwig AI confirms this aligns with standard grammatical usage and numerous examples.
Frequent in
News & Media
68%
Formal & Business
20%
Science
12%
Less common in
Ludwig's WRAP-UP
The word "inscrutable" is a versatile adjective, meaning difficult or impossible to understand. Ludwig AI confirms its correct grammatical standing. It is frequently employed in news and media contexts and formal business settings, suggesting a moderate level of formality. While synonyms like "unfathomable" or "enigmatic" exist, "inscrutable" carries a unique connotation of something deliberately or inherently mysterious. Use it to describe expressions, objects, or systems that defy easy interpretation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
unfathomable
Emphasizes the impossibility of fully understanding something.
enigmatic
Highlights the mysterious and puzzling nature of something.
mysterious
Focuses on the unknown and secretive aspects.
unreadable
Suggests a lack of clarity or transparency.
impenetrable
Conveys the idea of something being impossible to get through or understand.
arcane
Implies something is known or understood by only a few.
obscure
Indicates a lack of clarity or prominence.
opaque
Suggests a lack of transparency, either literally or figuratively.
perplexing
Highlights the confusing and baffling nature of something.
baffling
Emphasizes the confusing and bewildering nature of something.
FAQs
How can I use "inscrutable" in a sentence?
You can use "inscrutable" to describe something difficult to understand, like "The ancient text was "difficult to decipher" because it was written in an inscrutable language" or to describe a person's expression: "He maintained an inscrutable expression throughout the trial".
What are some synonyms for "inscrutable"?
Alternatives to "inscrutable" include "unfathomable", "enigmatic", "mysterious", and "unreadable". The best choice depends on the specific nuance you want to convey.
What is the difference between "inscrutable" and "ambiguous"?
"Inscrutable" suggests something is impossible to interpret or understand, while "ambiguous" means something can be interpreted in multiple ways. "Inscrutable" implies a lack of clarity, while "ambiguous" implies multiple possible meanings.
Is it correct to use "inscrutable" to describe a person?
Yes, it is perfectly correct. You can describe a person's behavior, expression, or character as "inscrutable" if they are "difficult to understand" or their motives are unclear. For example: "Her inscrutable nature made it hard to predict her actions".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
93%
Authority and reliability
4.6/5
Expert rating
Real-world application tested