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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is rational
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is rational" is correct and usable in written English.
It can be used to describe something that is logical, reasonable, or based on sound judgment. Example: "Her argument is rational and well-supported by evidence."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
The idea is rational.
News & Media
It is rational.
News & Media
What is rational expectations?
News & Media
Righty is rational.
Academia
This is rational corporate behaviour.
News & Media
I decide this is rational.
News & Media
"I think that is rational.
News & Media
Fear of Muslims is RATIONAL.
News & Media
But the idea is rational.
News & Media
"The market is rational; the government's dumb".
News & Media
"Iran is rational," Mr. Labbad said.
News & Media
Expert writing Tips
Best practice
When using "is rational", ensure that the context provides sufficient information for the reader to understand the basis for the claim of rationality.
Common error
Avoid claiming something "is rational" without providing supporting evidence or reasoning. Rationality is often subjective, so clearly articulate the basis for your assessment.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is rational" functions as a predicate adjective, attributing the quality of being logical or reasonable to a subject. Ludwig confirms this use. It is used to express that something aligns with reason and sound judgment.
Frequent in
News & Media
45%
Science
25%
Encyclopedias
8%
Less common in
Formal & Business
7%
Wiki
5%
Academia
5%
Ludwig's WRAP-UP
In summary, the phrase "is rational" is a common and grammatically correct way to describe something as being logical and reasonable. Ludwig AI affirms its validity. As shown by numerous examples from diverse sources such as news media, scientific publications, and encyclopedias, it is used to indicate that a decision, argument, or behavior is based on sound judgment rather than emotion. While generally neutral to formal in tone, ensure you provide sufficient context or evidence when asserting that something "is rational", as rationality can be subjective. Consider alternatives like ""makes sense"", ""is logical"", or ""is reasonable"" to fine-tune your expression depending on the specific nuance you intend to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is logical
Highlights the adherence to principles of valid reasoning.
is reasonable
Suggests fairness and good judgment in a decision or action.
is sound
Implies reliability and validity in reasoning or judgment.
makes sense
Emphasizes the comprehensibility and logical coherence of something.
is sensible
Suggests practicality and good sense.
is justified
Focuses on the existence of adequate grounds or reasons.
is coherent
Highlights the clear and logical connection of ideas.
is understandable
Focuses on the ease with which something can be grasped or comprehended.
is well-founded
Indicates a solid basis in evidence or reasoning.
is plausible
Indicates a degree of credibility or believability.
FAQs
How can I use "is rational" in a sentence?
You can use "is rational" to describe something that is based on reason or logic. For example, "His decision "is rational" because it considered all the available evidence."
What are some alternatives to "is rational"?
Depending on the context, alternatives to "is rational" include "is logical", "is reasonable", or "makes sense".
When is it appropriate to use "is rational"?
It's appropriate to use "is rational" when you want to emphasize that something is based on reason and sound judgment, rather than emotion or bias. For example: "Investing in renewable energy "is rational" due to the long-term environmental and economic benefits."
What's the difference between "is rational" and "is reasonable"?
"Is rational" emphasizes logic and deduction, while "is reasonable" suggests fairness and moderation. A decision that "is rational" may not always be seen as "is reasonable" if it doesn't consider ethical or social factors.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested