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
moderately fast
Grammar usage guide and real-world examplesUSAGE SUMMARY
"moderately fast" is a correct and usable phrase in written English.
It is typically used to describe the speed or rate at which something is done or happens, and usually falls in between "slow" and "fast" on a spectrum. Some examples of using "moderately fast" in a sentence are: 1. "The car was driving at a moderately fast speed, but not so fast that the driver couldn't keep control." 2. "The chef chopped the vegetables at a moderately fast pace, as he wanted to finish preparing the dish in time for dinner service." 3. "The train was moving at a moderately fast speed, allowing passengers to enjoy the scenery while still reaching their destination on time." Overall, "moderately fast" is a versatile phrase that can be used in various contexts to describe a speed or rate that is neither too slow nor too fast.
✓ Grammatically correct
News & Media
Science
Wiki
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
Day 3 -- Moderately fast walk 4 min., moderate run 1 min. Repeat for 35 min. total.
News & Media
Using a moderately fast wireless connection, I quickly found multiple versions of the film.
News & Media
Hardy from U.S.D.A. Hardiness Zones 4 through 8, cornelian cherry is cosmopolitan about its soil, transplants easily, and grows moderately fast.
News & Media
Neither service will be cheap, both charging about sixty dollars a month for moderately fast (but not blazing fast) broadband service.
News & Media
Penetration is just 3-4% of the population, if judged by the number of moderately fast fixed internet lines and smartphones that use 2.5G and 3G services.
News & Media
Backs who clocked in with a sub-4.40 time have produced at more than six times the rate of even moderately fast running backs in the 4.50 to 4.59 range.
News & Media
Linear interpolation algorithms are not so complicated and moderately fast.
The first case deals with a moderately fast gas liquid reaction in a continuous flow reactor.
Science
This clustering algorithm is moderately fast and returns a simple index of integers which enumerates each observation to its respective cluster.
However, if time variation is not so fast or is only moderately fast (in between fast and slow varying), our LS algorithm can be still quite useful as we can cope with the moderately fast time-varying environment by reducing the number of repeated blocks.
A significant result is that for moderately fast reactions, the kinetics is disguised in the coarse-grained model if a single pore space averaged concentration mode is used.
Science
Expert writing Tips
Best practice
When describing processes, use "moderately fast" to provide a balanced view, avoiding extremes. It's useful when precision isn't critical but a general sense of pace is needed.
Common error
In scientific or technical writing, avoid relying solely on "moderately fast" if precise measurements are available. Instead, quantify the speed using specific metrics for greater accuracy and clarity.
Source & Trust
77%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "moderately fast" functions as an adverbial modifier to describe the degree or extent of speed. It qualifies adjectives, verbs, or other adverbs to indicate a speed that is neither slow nor rapid. Ludwig AI confirms its correctness and usability.
Frequent in
Wiki
39%
News & Media
25%
Science
36%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "moderately fast" serves as a versatile descriptor of speed, indicating a pace that's neither slow nor excessively quick. Ludwig AI validates its grammatical correctness and widespread use across diverse contexts like news, science, and general knowledge. The phrase functions as an adverbial modifier and maintains a neutral register, making it appropriate for a range of writing styles. Alternatives include "relatively fast" or "fairly fast", depending on the nuance required. While suitable for general descriptions, technical contexts may benefit from more precise quantitative measures.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
moderately rapidly
Replaces "fast" with its adverbial form "rapidly".
relatively fast
Indicates speed in comparison to something else.
comparatively fast
Similar to "relatively fast", emphasizing a comparison.
appropriately fast
Emphasizes suitability for a specific purpose, rather than just speed.
quite fast
Similar in meaning, but can imply a slightly higher degree of speed.
suitably fast
Similar to "appropriately fast", highlighting fitness for a purpose.
pretty fast
More informal and less precise than "moderately fast".
fairly fast
Close in meaning, but carries a slightly less formal tone.
slightly fast
Indicates a minor degree of quickness.
somewhat fast
Similar to "slightly fast", implying a small degree of quickness.
FAQs
How can I use "moderately fast" in a sentence?
You can use "moderately fast" to describe actions or processes that occur at a speed that's neither slow nor very quick. For example, "The data was transferred at a moderately fast rate".
What are some alternatives to using "moderately fast"?
Depending on the context, you can use alternatives like "appropriately fast", "relatively fast", or "fairly fast" to express a similar meaning.
Is it correct to say "somewhat fast" instead of "moderately fast"?
"Somewhat fast" is grammatically correct and similar in meaning to "moderately fast", but it suggests a slightly lesser degree of speed. Choose the phrase that best fits the nuance you wish to convey.
In what situations is "moderately fast" most appropriate?
"Moderately fast" is suitable when you want to indicate a speed that is average or in the middle range. It's less appropriate when precise measurements or comparisons are needed.
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
77%
Authority and reliability
4.5/5
Expert rating
Real-world application tested