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
slown down
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "slown down" is not correct in English; it should be "slow down." You can use "slow down" when instructing someone to reduce their speed or pace, either physically or metaphorically.
Example: "Please slow down when driving through the neighborhood to ensure everyone's safety."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(9)
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
We sought to evaluate whether the evaluation of tumour growth kinetics before and during treatment would add value to RECIST in patients treated with MTAs in order to determine whether some patients, in the absence of therapeutic alternative, have discontinued therapy early because of disease progression although tumour growth kinetics had been slown down.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
"Down, down, down".
News & Media
Calm down, calm down".
News & Media
"Fall down, fall down.
News & Media
"Scroll down, scroll down.
News & Media
Down, down, down: that's tourism.
News & Media
Down, down, down with the clenching fists,.
News & Media
Down, down, down, the invader demands.
News & Media
Double down, triple down, quadruple down.
News & Media
Melted down?
News & Media
Pencils down!
News & Media
Expert writing Tips
Best practice
When intending to express a reduction in speed or intensity, always use the correct form "slow down." This ensures clarity and grammatical accuracy.
Common error
Avoid using non-standard past participle forms like "slown" in place of the correct form "slowed." Always verify verb conjugations to maintain grammatical accuracy.
Source & Trust
86%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "slown down" functions as a verb phrase intended to describe a reduction in speed or intensity. However, it is grammatically incorrect. According to Ludwig AI, the correct form is "slow down".
Frequent in
News & Media
27%
Wiki
20%
Science
18%
Less common in
Formal & Business
10%
Reference
5%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "slown down" is a grammatically incorrect form; the correct form is "slow down." While the intended meaning—to reduce speed or intensity—may be understood from context, using the accurate phrase is crucial for clear communication. Ludwig AI notes the incorrect usage and suggests using "slow down" instead. Related phrases like "decelerate" or "reduce speed" can also serve as alternatives. Always ensure verb conjugations are accurate to maintain grammatical correctness, especially in formal or scientific contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
slow down
Corrects the grammatical error in the original phrase by using the base form of the verb.
decelerate
Uses a single verb to express the action of reducing speed.
reduce speed
Emphasizes the action of decreasing velocity.
decrease pace
Focuses on reducing the rate or tempo of an activity.
ease up
Suggests a gradual reduction in effort or intensity.
let up
Implies a lessening of pressure or intensity.
curtail
Formal term suggesting a reduction or restriction.
moderate
Suggests adjusting to a more balanced or controlled level.
taper off
Describes a gradual decrease, often used in contexts of intensity or quantity.
abate
Indicates a decrease in intensity or degree.
FAQs
What is the correct way to say "slown down"?
The correct phrase is "slow down". "Slown" is not a standard past participle form in English.
Can I use "slown down" in any context?
No, "slown down" is grammatically incorrect and should not be used in formal or informal writing. Use "slow down" instead.
Are there any synonyms for "slow down"?
Yes, you can use phrases like "decelerate", "reduce speed", or "decrease pace" as alternatives to "slow down".
What's the difference between "slown down" and "slowed down"?
"Slown down" is not a correct phrase in English. The correct past participle form is "slowed down", which means to have decreased in speed or pace. Always use "slowed down" in past tense constructions. For example: "The car slowed down as it approached the intersection".
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
86%
Authority and reliability
1.8/5
Expert rating
Real-world application tested