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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
slack face
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'slack face' is not correct or usable in written English.
It is not a recognized phrase in the English language so it cannot be used.
⚠ May contain grammatical issues
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
1 human-written examples
Eykelboom walked around doing the same thing, sucking in his belly, sticking out his chest, atop which stood the same long neck, slack face, flattop haircut.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
My nephew, my sister had told me, wanted to keep things low-key, wanted to avoid the roomful of slack faces and well-meaning condolences should things not go as hoped.
News & Media
Instead we get a blank slate, slack faced version of the actor, which starts out bland, but gradually dredges up a few interesting dramatic resources for a man without much of anything going on internally.
News & Media
Much of the slack from face-to-face professor time is taken up by advanced students who volunteer to tutor their peers, in exchange for prestige and warm fuzzy feelings.
News & Media
Weiss, who was previously at Foursquare, is working on probably one of the most complicated and important problems Slack might face: jumping from a massive set of chat rooms to something that operates functionally as a base of operations for an entire organization.
News & Media
He gazed into his client's slack-jawed face.
News & Media
The wife of the Speaker of the House of Commons (and one-time Labour candidate) does, on the otherwise spray-tanned, slack-jawed face of it, add gravitas.
News & Media
The move comes at a time when Slack is facing new competition from Microsoft and Facebook, who have each launched their own rival products in recent weeks.
News & Media
But Slack also faces increasing competition as time goes on, not only from the traditional companies looking to build more robust but simpler tools, but also from companies that have spent a lot of time working on collaboration tools and are now exploring communication.
News & Media
Then he lurches to his feet, shifts what must be fossilized bones, clears his slack gullet, glances from face to face to face to face, and waits what must be a Julian light-year before he says this: "My friends, the world ain't set up for guys like us to win, but that's all the more reason to win".
News & Media
Then he lurches to his feet, shifts what must be fossilised bones, clears his slack gullet, glances from face to face to face to face, and waits what must be a Julian light-year before he says this: "My friends, the world ain't set up for guys like us to win, but that's all the more reason to win".
News & Media
Expert writing Tips
Best practice
Consider using more descriptive and grammatically sound alternatives like "expressionless face", "blank face", or "relaxed face" to convey the intended meaning more effectively.
Common error
Avoid using "slack" as a general adjective for a face, as it typically implies a loss of muscle tone or control. If you mean to describe a lack of expression or focus, choose a more appropriate term.
Source & Trust
85%
Authority and reliability
2.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "slack face" functions as a noun phrase, attempting to describe the state of a face. However, Ludwig AI identifies it as an incorrect or unusable phrase in standard written English. While "slack" can modify other nouns (e.g., "slack jaw"), its application to "face" alone is uncommon.
Frequent in
News & Media
100%
Less common in
Formal & Business
0%
Science
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, while the phrase "slack face" attempts to describe a relaxed or unresponsive facial expression, Ludwig AI identifies it as grammatically incorrect and rarely used in standard English. It is more effective to use alternatives like "expressionless face", "blank face", or "relaxed face" to convey the intended meaning with greater clarity and accuracy. Though it appears in reputable sources like The New Yorker and The New York Times, its infrequent usage suggests it is not a preferred or widely accepted expression. Therefore, writers should exercise caution and opt for more conventional phrasing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
expressionless face
Focuses on the lack of emotion rather than looseness.
blank face
Emphasizes a lack of comprehension or reaction.
relaxed face
Highlights the absence of tension.
drooping face
Focuses on the downward sagging of facial features.
lifeless face
Emphasizes a lack of vitality.
unresponsive face
Highlights a lack of reaction or engagement.
passive face
Indicates a lack of active expression.
vacant expression
Focuses on the empty or unintelligent look.
listless expression
Suggests a lack of energy or interest.
inattentive look
Indicates a lack of focus or awareness.
FAQs
How can I describe a face that lacks expression?
Instead of "slack face", consider using phrases like "expressionless face", "blank face", or "unreadable face". The best choice depends on the specific nuance you want to convey.
Is "slack face" grammatically correct?
While the individual words are valid, "slack face" is not a standard or widely accepted phrase in English. Ludwig AI indicates that it's not a recognized phrase.
What's the difference between a "slack face" and a "relaxed face"?
A "relaxed face" implies a lack of tension or stress, while "slack face" suggests a loss of muscle tone or a drooping appearance. They are not interchangeable.
Can "slack" be used to describe other facial features?
Yes, "slack" can be used to describe other facial features, such as a "slack jaw" or "slack mouth", to indicate looseness or a lack of tension in those specific areas.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
2.2/5
Expert rating
Real-world application tested