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
is perfectly valid
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is perfectly valid" is correct and usable in written English.
You can use it to affirm that something is acceptable, legitimate, or appropriate in a given context. Example: "The argument you presented is perfectly valid and deserves consideration in our discussion."
✓ Grammatically correct
News & Media
Science
Academia
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
30 human-written examples
The sentiment is perfectly valid.
News & Media
What Ivo sees is perfectly valid.
News & Media
But the comparison is perfectly valid.
News & Media
Some researchers think it is perfectly valid to ignore such deaths.
News & Media
This is perfectly valid for the hygiene, quality, safety or economical aspects of processes and products.
Science
Their underlying case is perfectly valid – when children devote energy to fighting infection, brain development is sometimes sacrificed.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
30 human-written examples
"Those are perfectly valid," she said.
News & Media
Some of the sniping towards Chambers Bay has been perfectly valid.
News & Media
There may be perfectly valid reasons for the shooting.
News & Media
Often, the actual reasons for the outrage are perfectly valid.
News & Media
"Some of her reasons were perfectly valid," Francis says.
News & Media
Expert writing Tips
Best practice
When using "is perfectly valid", ensure the context clearly establishes the criteria or standards against which the validity is being assessed. This enhances clarity and strengthens the argument.
Common error
Avoid using "is perfectly valid" as a rhetorical crutch to prop up unsupported claims. Always provide evidence or reasoning to substantiate the validity you are asserting.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is perfectly valid" functions as a predicate adjective, describing a noun or idea as completely acceptable, sound, and justified. As Ludwig AI explains, this phrase affirms the legitimacy of something. Examples from Ludwig showcase its application across varied contexts, reinforcing its role in expressing agreement or endorsement.
Frequent in
News & Media
36%
Science
28%
Academia
12%
Less common in
Wiki
8%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "is perfectly valid" is a phrase used to express that something is entirely acceptable, sound, and justified. Ludwig AI confirms it's grammatically correct and usable in written English, appearing frequently in news, science, and academic contexts. While versatile, it's crucial to use this phrase judiciously, ensuring that the claims supported by it are substantiated with evidence. For alternative expressions, consider options such as "is entirely acceptable", "is completely legitimate", or "is fully justified" to tailor the nuance to the specific context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is entirely acceptable
Emphasizes the acceptability of something, focusing on agreement or approval.
is completely legitimate
Stresses the lawfulness and authenticity of something.
is fully justified
Highlights that something has sufficient reasons or grounds.
is entirely justified
Similar to 'fully justified', but with a slightly stronger emphasis.
is wholly legitimate
Emphasizes the complete legitimacy of something.
is entirely reasonable
Focuses on the rationality and logical soundness of something.
is absolutely sound
Highlights the robustness and reliability of something.
is completely warranted
Indicates that something is deserved or required.
is perfectly reasonable
Indicates that something is sensible and based on good judgment.
is totally acceptable
Emphasizes that something is permissible without objection.
FAQs
How can I use "is perfectly valid" in a sentence?
Use "is perfectly valid" to indicate that a statement, argument, or method is acceptable and sound. For example, "His reasoning "is perfectly valid", given the available evidence."
What are some alternatives to saying "is perfectly valid"?
You can use alternatives like "is entirely acceptable", "is completely legitimate", or "is fully justified" depending on the specific nuance you want to convey.
Is it better to say "is valid" or "is perfectly valid"?
"Is perfectly valid" emphasizes a stronger affirmation of validity than simply saying "is valid". Choose based on the degree of emphasis you want to convey.
Can "is perfectly valid" be used in formal writing?
Yes, "is perfectly valid" is suitable for formal writing. However, ensure that its use aligns with the tone and style of the piece; sometimes, a more nuanced phrase might be more appropriate.
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
4.6/5
Expert rating
Real-world application tested