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
disallow
Grammar usage guide and real-world examplesUSAGE SUMMARY
"disallow" is a correct and usable word in written English.
It is a verb that means to forbid, or prevent from happening. You can use it when expressing that someone or something is not permitted to do or have something. Example: The school disallowed the students from wearing open-toed shoes.
✓ Grammatically correct
News & Media
Encyclopedias
Science
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
Replays show the decision to disallow the goal was correct, but he wasn't offside by much.
News & Media
While Australia has never been tempted to adopt the mooted British proposal of actively talking down the nation in order to discourage immigration from Romania and Bulgaria – Australian rhetoric about being the greatest nation on earth would disallow such posturing – both parties have hardline stances on immigration.
News & Media
That was just one of a series of tit-for-tat remarks that flew back and forth between the clubs, Torino lamenting the referee's failure to disallow the goal while Juventus mocked their rivals for failing to create any scoring chances of their own.
News & Media
The Commonwealth's power to disallow laws made in the territory was weakened in the last parliament and now requires legislation to be passed through both the House of Representatives and the Senate, making it much more difficult than when the Howard government overturned an attempt by the ACT to legalise same sex marriage seven years ago.
News & Media
It does not disallow altruistic behaviour, but requires that this evolve in a way that promotes the interest of a particular gene for example by helping close relatives who might also harbour the gene in question.
News & Media
The opposition parties who control a majority in the Senate, the upper house of the federal parliament, say they will disallow the excision regulation when parliament resumes on November 24th.
News & Media
After Mr Dotcom's arrest, similar sites immediately changed their policies to disallow any sharing of content between users.
News & Media
Legitimate sources for execution drugs are all but impossible to come by, as European drug-makers disallow the sale of their products for use in lethal injections.
News & Media
England's exit from the World Cup at the hands of Argentina (not literally, this time) was variously blamed (by the English) on the referee's decision to send off David Beckham, or to disallow a third English goal, or not to give a penalty that might have given England the lead.
News & Media
Disallow early withdrawals from retirement savings accounts, (but keep loan features).
News & Media
Gulliver, who has always worked for companies that disallow subsidised travel, may come down on the sanctimonious side of the fence on this issue, but is willing to hear from others who have taken supplier-paid trips and walked away with their decision-making facilities unaffected.
News & Media
Expert writing Tips
Best practice
Use "disallow" in formal and neutral contexts, as it carries a degree of authority and finality.
Common error
Avoid using "disallow" when a simple suggestion or discouragement is intended. "Disallow" implies a formal or authoritative prevention, not just a recommendation.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "disallow" is as a transitive verb. It signifies the act of withholding permission or authority, preventing a specific action or outcome. Ludwig provides numerous examples showcasing this usage in diverse contexts.
Frequent in
News & Media
67%
Encyclopedias
15%
Science
8%
Less common in
Formal & Business
5%
Reference
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "disallow" functions as a transitive verb that conveys the act of prohibiting or denying something. As confirmed by Ludwig, it adheres to standard grammar rules and enjoys widespread use across diverse contexts, particularly in News & Media, Encyclopedias, and Science. The phrase carries a neutral to formal tone, making it suitable for professional and authoritative communication. When using "disallow", it's important to specify what is being prevented and by whom to maintain clarity. Although "disallow" is a valid word, one should be mindful about its alternatives such as "prohibit", "forbid", and "veto".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
prohibit
A more direct synonym, emphasizing a formal prohibition.
forbid
Similar to "prohibit", but can also imply a personal command or order.
veto
Implies the power to reject or prevent something, especially in a political or authoritative context.
rule out
Suggests eliminating something as a possibility or option.
block
Indicates an obstruction or prevention of something from proceeding.
preclude
Means to make something impossible or prevent it from happening.
reject
To refuse to accept or approve of something.
decline
Similar to "reject", but often implies a polite refusal.
disapprove
To have an unfavorable opinion of something, potentially leading to its prohibition.
oppose
To actively resist or object to something, potentially preventing it from happening.
FAQs
How to use "disallow" in a sentence?
"Disallow" means to refuse to allow something. For example, "The referee may "disallow" the goal if the player was offside."
What can I say instead of "disallow"?
Which is correct, "disallow" or "not allow"?
Both "disallow" and "not allow" are correct, but "disallow" is more formal and implies a stronger sense of prohibition. You can use "do not allow" in other cases. For example: "The rules do not allow cell phones".
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested