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
lack of reason
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "lack of reason" is correct and usable in written English.
It can be used to describe a situation or behavior that is irrational or not based on logical thinking. Example: "The decision to proceed without any evidence was a clear lack of reason on their part."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
folly
irrationality
lack of reasons
baseless
lack of consideration
devoid of reason
lack of basis
lack of justification
lack of background
absence of reason
lack of supporting evidence
lack of substantiation
lack of virtue
lack of bookkeeping
lack of rationale
absence of logic
lack of basic
lack of essence
lack of grounding
illogicality
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
25 human-written examples
Have sure more lack of reason.
Academia
The early art of Miró has a necessity in its lack of reason.
News & Media
"The criticism that Axl gets when he does bold stuff is that he's showing some sort of instability or lack of reason," Ms. Najarian said.
News & Media
When the effort proved fruitless, officials put the blame on the local population's lack of "reason, logic, thought, common-sense and analysis".
News & Media
He said: "There is a total lack of reason for her to go missing and she was very upbeat at the time.
News & Media
Its absence reflects in a number of collective dignity deficits: lack of reason, lack of security, human rights abuses, lack of accountability, lack of transparency, absence of justice, lack of opportunity, lack of innovation and lack of inclusiveness.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
35 human-written examples
The entire story is obviously tragic, but it does make you (once again) consider the whole ease-of-oversharing-slash-lack-of-reason-and-or-responsibility thing that has come to mire the reputation of the Internet Age.
News & Media
Beauty without reasons, and without anxiety over the lack of reasons: that may be what life was like before we started making it up.
News & Media
Some Conservatives are already grumbling that the lack of reasons to positively vote Tory is down to nebulous campaigning slogans such as "the big society".
News & Media
"Given a lack of reasons to really push the Nikkei higher and the fact that it rose over 200 points yesterday, this is a good level for a bit of profit-taking".
News & Media
The consequence of this lack of reasoned open debate about pay may mean that everyone ends up losing.
News & Media
Expert writing Tips
Best practice
To enhance clarity, consider using more specific terms like "irrationality", "absence of logic", or "deficiency of rationale" depending on the context
Common error
While "lack of reason" is generally acceptable, avoid overuse in highly formal or scientific writing. Opt for more precise terms like "cognitive deficit" or "logical fallacy" to maintain a professional tone.
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "lack of reason" primarily functions as a noun phrase. It typically acts as the subject or object of a sentence, describing the absence of logical thought or justification. Ludwig AI indicates that the phrase is grammatically correct.
Frequent in
News & Media
63%
Academia
21%
Science
16%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "lack of reason" is a grammatically correct and commonly used noun phrase expressing the absence of logical thought or justification. As Ludwig AI confirms, it is often used to critique decisions or actions deemed irrational. While it appears across various contexts, it is most frequent in News & Media and Academic writing. When deploying the expression, ensure clarity by specifying the specific area where reason is lacking. For more formal contexts, consider alternatives such as "irrationality" or "absence of logic" to maintain a professional tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
irrationality
This is a single-word alternative that emphasizes the state of being irrational.
illogicality
Similar to "irrationality", this term stresses the lack of logical coherence.
absence of logic
This phrase highlights the missing element of logical thinking.
lack of common sense
This phrase denotes a deficiency in practical judgment.
deficiency of rationale
This alternative focuses on the inadequacy or absence of a reasoned basis.
want of understanding
This phrase emphasizes the absence of comprehension or insight.
unreasonableness
This alternative points to the quality of not being reasonable or sensible.
irrational behavior
This describes actions that are not based on reason.
folly
This word suggests foolishness or a lack of good sense.
absurdity
This highlights the ridiculous or nonsensical nature of something.
FAQs
How can I use "lack of reason" in a sentence?
You can use "lack of reason" to describe a situation or behavior that is irrational or not based on logical thinking. For example: "The decision was driven by emotion and a "lack of reason"."
What are some alternatives to "lack of reason"?
You can use alternatives like "irrationality", "absence of logic", or "deficiency of rationale" depending on the context.
Is it better to say "absence of reason" or "lack of reason"?
"Absence of reason" and "lack of reason" are largely interchangeable. "Lack of reason" is slightly more common, but both are grammatically correct. Choose the one that fits better with the tone and flow of your writing.
What does it mean when someone says there's a "lack of reason"?
It typically implies that a decision, action, or belief is not based on logic, evidence, or sound judgment. It suggests that emotions, biases, or other non-rational factors are influencing the situation.
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
4.1/5
Expert rating
Real-world application tested