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
black as sin
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "black as sin" is correct and usable in written English.
It can be used to describe something that is very dark or black in color, often with a connotation of something negative or evil. Example: "The room was painted black as sin, making it feel even more ominous."
✓ Grammatically correct
News & Media
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
3 human-written examples
He is repulsed by casual but damning phrases ("black as sin" "blackhearted"), and by the inability — or unwillingness — of whites to hear the black experience: this "universal" language, he writes, can't speak the language of invisibility, discrimination, hopelessness.
News & Media
Little possum, black as sin.
News & Media
The authentic Texas barbecue people at Smoke City Market (5242 Van Nuys Blvd, in Sherman Oaks), where all meat are smoked over white oak, were publicizing Jon's review of their food: "The beef ribs are as thick as bibles and black as sin".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
He was a violent man, but he lived in violent times, and he was as much sinned against as sinning.
Encyclopedias
It should look rich as sin.
News & Media
Digested read, digested: Guilty as sin.
News & Media
As ever, decadence is as popular as sin.
News & Media
"Most of the time, they're guilty as sin".
News & Media
Sex must be experienced as sin to be satisfying.
News & Media
87 min: Poor old Strachan looks miserable as sin.
News & Media
He's as guilty as sin.
News & Media
Expert writing Tips
Best practice
When using "black as sin", be mindful of its negative connotations. Consider whether a more neutral alternative, like "dark as night", would be more appropriate.
Common error
Avoid using "black as sin" too frequently, as it can become cliché. Vary your descriptions with alternative phrases to keep your writing fresh and engaging.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "black as sin" functions primarily as a simile, using the word "as" to draw a comparison between the color black and the concept of sin. It's an adjective phrase that modifies a noun, as seen in Ludwig's examples.
Frequent in
News & Media
100%
Less common in
Science
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "black as sin" is a simile used to describe something that is intensely dark, often with a negative or ominous connotation. Ludwig AI analysis confirms its grammatical correctness, and while it's not overly common, it appears primarily in News & Media contexts. Given the potential for misinterpretation due to the association of black with negativity, writers should use it judiciously and consider more neutral alternatives like "dark as night" when appropriate. While "black as sin" is usable in a number of contexts, it's important to be aware of potential negative connotations and to think of more suitable alternatives to keep your writing engaging.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
dark as night
Emphasizes darkness, lacking the negative connotation.
pitch black
Focuses on the intensity of the black color.
black as pitch
Highlights the darkness and stickiness of pitch.
jet black
Highlights the deep black color, similar to jet stone.
deep black
Simply denotes a profound shade of black.
ebony black
Compares the color to ebony wood, suggesting richness and darkness.
black as coal
Relates the color to coal, indicating a duller black.
evil as sin
Focuses on the wickedness implied by the term.
wicked as hell
Emphasizes extreme wickedness, similar in intensity.
guilty as sin
Shifts the focus to guilt rather than darkness.
FAQs
How can I use "black as sin" in a sentence?
You can use "black as sin" to describe something very dark or evil, such as "The knight's armor was "black as sin"." Be aware of its negative connotations.
What does "black as sin" mean?
"Black as sin" is an idiom that means extremely dark or evil. The phrase combines the literal darkness with the metaphorical darkness associated with sin.
Is "black as sin" offensive?
While not inherently offensive, "black as sin" can be perceived negatively due to the association of black with evil or negativity. Consider your audience and context.
What are some alternatives to "black as sin"?
Alternatives to "black as sin" include "dark as night", "pitch black", or "jet black" for descriptions of color. To convey the sense of evil, consider "wicked" or "corrupt".
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
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested