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
It is rational
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "It is rational" is correct and usable in written English.
You can use it when discussing the logic or reasonableness of a thought, action, or decision. Example: "In the context of economic theory, it is rational to assume that individuals act in their own self-interest."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
60 human-written examples
It is rational.
News & Media
"It is rational to be scared of it," Mark Steward, a former coach to Hooker, has said.
News & Media
It is rational to seek to persevere in being (see also what "reason demands" at IVP18S).
Science
It is rational to model the coverage area of a cell as a circular region.
It is rational to assume that the interlayer distance order is GO > graphene > graphite.
Science
It is rational to suggest that Cluster1 and Cluster2 represent graduate and dropout stereotypes.
It is rational to have a belief with a more natural rather than a less natural content.
Science
It is rational to treat a coronary fistula adjacent to a stenosis with one covered stent graft.
It is rational to investigate CD based on knowledge of the GPR.
Science
It is rational to hypothesise similar benefits in cardiopulmonary bypass.
Science
It is rational to expect that P. falciparum has also exerted selective pressure on A. gambiae.
Science
Expert writing Tips
Best practice
When using "It is rational", ensure that the subsequent explanation clearly demonstrates the logical steps or evidence supporting the claim.
Common error
Avoid using "It is rational" as a blanket statement without providing a clear, logical explanation or supporting evidence. Ensure that the reasoning behind the claim is transparent and easily understood by the reader.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "It is rational" primarily functions as an introductory clause to express a logical justification or reasoned explanation. Ludwig examples demonstrate its use in diverse contexts, from scientific hypotheses to economic analyses. Ludwig AI indicates it's used to present a view as reasonable.
Frequent in
Science
52%
News & Media
28%
Formal & Business
20%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "It is rational" is a grammatically correct and commonly used expression to indicate that something is logical, reasonable, and based on sound judgment. Ludwig AI confirms its correctness. It is frequently found in scientific, news media, and formal business contexts, suggesting its versatility in communicating reasoned explanations. When using this phrase, ensure that you provide adequate justification to support your claim and avoid overusing it without sufficient evidence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
It is reasonable
Replaces "rational" with "reasonable", indicating an action or belief is logical and sensible but may allow for more subjective interpretation.
It is logical
Substitutes "rational" with "logical", implying a clear, step-by-step thought process that makes sense.
It is sensible
Uses "sensible" instead of "rational", suggesting that the action or idea is practical and shows good judgment.
It is sound
Replaces "rational" with "sound", emphasizing the solidity and reliability of the reasoning.
It is justified
Uses "justified" instead of "rational", implying that there are valid reasons or evidence to support the action or belief.
It is advisable
Substitutes "rational" with "advisable", suggesting that the action is recommended or beneficial based on available information.
It is prudent
Replaces "rational" with "prudent", indicating the action shows careful consideration and avoids unnecessary risks.
It is understandable
Uses "understandable" instead of "rational", implying that the action or belief is easy to comprehend given the circumstances.
It stands to reason
Offers a more idiomatic alternative, emphasizing that something is logically expected or likely.
It makes sense
Provides a simpler, more direct way to say something is logical or reasonable.
FAQs
What does "It is rational" mean?
The phrase "It is rational" means that something is logical, reasonable, and based on sound judgment. It suggests that there's a clear and justifiable reason behind an action, belief, or decision.
How can I use "It is rational" in a sentence?
You can use "It is rational" to introduce an explanation or justification for a choice. For example, "It is rational to invest in renewable energy given the increasing concerns about climate change." You can use alternatives like "It is sensible" or "It is logical".
What are some alternatives to "It is rational"?
Alternatives to "It is rational" include phrases like "It is reasonable", ""It is sensible"", ""It is logical"", or "It makes sense". The best choice depends on the specific context and nuance you want to convey.
When is it appropriate to use "It is rational" in writing?
It is appropriate to use "It is rational" in academic writing, business reports, news articles, and any context where you need to justify a decision or explain a logical conclusion. However, avoid overuse and ensure that your reasoning is clear and well-supported.
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
4.5/5
Expert rating
Real-world application tested