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
severely affect
Grammar usage guide and real-world examplesUSAGE SUMMARY
'severely affect' is correct and usable in written English.
It can be used to describe a strong, negative influence on something. For example: "The lack of funding severely affected the library's ability to provide materials for its patrons."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(19)
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
It's not just a nuisance to have balance dues in several cards, it can also severely affect your credit score.
News & Media
Several factors that Air Lease does not control could severely affect its business.
News & Media
Instead we will have a harvest of imported goods which will severely affect Australia's "bibliodiversity".
News & Media
In New York City, the mayor's planned budget adjustment will not severely affect uniformed services.
News & Media
"Defendants further know that such injury would severely affect his performance".
News & Media
It would severely affect those companies that depend on just-in-time inventory.
News & Media
By contrast, pathological processes, such as those that accompany Alzheimer's disease, severely affect hippocampal regions.
Science & Research
Finally, we illustrate how local density variations can severely affect particle size distribution measurements.
Science
This crack pattern can severely affect the vibration characteristics of the shafts.
These early-age cracks can severely affect the durability of a concrete structure.
Within a few decades they will severely affect billions of people in many parts of the world.
News & Media
Expert writing Tips
Best practice
When using "severely affect", ensure the context clearly indicates what is being affected and the nature of the severe impact. For example, specify if it affects performance, quality, or functionality.
Common error
While "severely affect" is grammatically sound, overuse can make writing sound overly formal or dramatic. In less formal contexts, consider alternatives like "really hurt" or "badly impacted" to maintain a more conversational tone.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "severely affect" functions as a verb phrase, where "severely" is an adverb modifying the verb "affect". It indicates the degree to which something is influenced or impacted. Ludwig AI confirms its usability and grammatical correctness.
Frequent in
Science
42%
News & Media
37%
Formal & Business
21%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "severely affect" is a grammatically sound and frequently used expression to describe a strong negative influence. As Ludwig AI points out, it's usable in written English and suitable for various contexts. Analysis of usage patterns indicates it appears most often in science and news media. While perfectly acceptable, writers should be mindful of overuse and consider alternatives like "gravely impact" or "seriously impair" in less formal settings. Remember to use "affect" (verb) and not "effect" (noun) and to clearly specify the subject being affected.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
negatively impact
This is a direct synonym, simply replacing "severely" with "negatively".
gravely impact
This alternative suggests a serious and significant negative consequence.
seriously impair
This suggests a weakening or damaging effect on function or ability.
critically undermine
This implies a weakening of the foundation or support of something.
significantly damage
This focuses on the harm or destruction caused.
adversely influence
This suggests a negative effect on the course or outcome of something.
profoundly disrupt
This indicates a major disturbance or interruption.
deeply compromise
This implies a weakening of integrity or quality.
sharply reduce
This focuses on a significant decrease in quantity or quality.
intensely degrade
This alternative suggests a severe decline in condition or quality.
FAQs
How to use "severely affect" in a sentence?
Use "severely affect" to describe something that has a strong negative impact on something else. For example: "The budget cuts will "severely affect" the library's operating hours."
What can I say instead of "severely affect"?
You can use alternatives like "gravely impact", "seriously impair", or "negatively impact" depending on the context.
Which is correct, "severely affect" or "severely effect"?
"Severely affect" is correct. "Affect" is a verb meaning to influence, while "effect" is typically a noun meaning a result or consequence. Thus, something "severely affects" something else.
What's the difference between "severely affect" and "moderately affect"?
"Severely affect" indicates a strong, negative impact, while "moderately affect" indicates a less intense or significant impact. The choice depends on the degree of influence you want to convey.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested