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 rapid
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "moderately rapid" is correct and usable in written English.
It can be used to describe a pace or speed that is faster than average but not extremely fast. Example: "The train travels at a moderately rapid speed, allowing passengers to reach their destination in a timely manner."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(5)
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
11 human-written examples
The genus Velia occurs around moderately rapid streams and bogs.
Encyclopedias
Other benefits include a moderately rapid sample processing time (∼3 days), and simultaneous 13C and 15N labeling.
Science & Research
Moderately rapid recovery of bitterbrush density and cover resulted from seedling recruitment plus limited basal sprouting.
A pH 10 buffer solution that would lead to moderately rapid degradation of the porous Si samples (time for degradation <300 min) was selected for this study.
Science
Blood clearance were fit well by a 3-exponential model with a rapid clearance phase (T ½ ~ 5 s), a moderately rapid clearance phase (T ½ ~ 1.5 min), and a slower clearance phase (T ½ > 30 min) proceeding to the end of the 4-h measurement period.
Science
These observations suggest that moderately rapid radiation probably occurred during the divergences of waterbird orders/families.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
As a result of moderately more rapid growth in the US than the euro zone last year (2.4% in the United States compared to 0.9% in the euro zone) the dollar rose rapidly against the euro – and the US trade deficit is rising as a result.
News & Media
Positive inotropic response to hypothermia was accompanied by moderately increased rapid cooling contractures as a measure of sarcoplasmic reticulum (SR) Ca2+ content, but can be elicited even when the SR Ca2+ release is blocked in the presence of ryanodine.
Phosphate buffer had separations comparable to formate ( = 4.2), but unfortunately had moderately high conductivity and rapid Joule heating.
Science
Their publications and Stephen Jay Goulds' popularization of their work in his book Wonderful Life aroused enduring scientific interest and some public interest in the Cambrian explosion, the apparently rapid appearance of moderately complex bilaterian animals in the Early Cambrian.
Wiki
Our findings support that the QuickVue rapid test performs moderately well in the detection of influenza A H1N1pdm.
Science
Expert writing Tips
Best practice
When describing processes, use "moderately rapid" to indicate a speed that is efficient but not rushed, suggesting a balance between speed and thoroughness.
Common error
Avoid using "moderately rapid" when the context requires a stronger emphasis on speed. If the process is exceptionally fast, consider using "very rapid" or "extremely quick" instead.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "moderately rapid" primarily functions as an adverbial modifier describing the rate or speed of an action or process. It indicates a tempo that is faster than average but not exceedingly fast, as evidenced by Ludwig AI and the provided examples.
Frequent in
Science
76%
News & Media
14%
Encyclopedias
10%
Less common in
Formal & Business
0%
Wiki
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "moderately rapid" is a grammatically sound and frequently used expression to describe a pace or speed that is faster than average but not extremely fast. Predominantly found in scientific and news contexts, the phrase offers a nuanced way to depict progress or change. Ludwig AI confirms its proper usage, highlighting its function as an adverbial modifier. Alternatives such as "fairly quick" or "somewhat fast" can be used depending on the desired level of formality and precision. However, using stronger terms like "rapid" might be more appropriate if the rate is exceptionally high.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
moderately fast
Reorders the words while keeping similar meaning.
fairly quick
Replaces "moderately" with "fairly", suggesting a slightly less precise degree of speed.
somewhat fast
Substitutes "moderately" with "somewhat", indicating a similar level of intensity but with different wording.
relatively fast
Uses "relatively" to indicate speed in comparison to something else, maintaining a similar meaning.
reasonably quick
Employs "reasonably" to suggest an acceptable speed, slightly altering the tone.
quite speedy
Replaces both words, altering the tone to be slightly more informal but keeping the meaning similar.
averagely quick
Replace moderately with averagely but this is rare.
slightly fast
Replace moderately with slightly.
kind of quick
Uses a more casual and less precise tone.
passably fast
Passably replace both words to express the intended meaning.
FAQs
How can I use "moderately rapid" in a sentence?
You can use "moderately rapid" to describe processes or changes that are happening at a pace faster than average but not extremely fast. For example: "The recovery was at a "moderately rapid" pace".
What can I say instead of "moderately rapid"?
Alternatives include "fairly quick", "somewhat fast", or "relatively fast" depending on the specific context and desired nuance.
Is "moderately rapid" formal or informal?
"Moderately rapid" is generally considered a neutral to slightly formal phrase, suitable for academic, scientific, and professional contexts. More informal alternatives exist, but "moderately rapid" provides a balance of precision and accessibility.
What's the difference between "moderately rapid" and "rapid"?
"Moderately rapid" indicates a speed that is less intense than simply "rapid". While "rapid" suggests a high speed, "moderately rapid" implies a speed that is faster than average but not the fastest possible.
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
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested