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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
a unlawful
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a unlawful" is not correct in written English. It should be "an unlawful" because "unlawful" begins with a vowel sound. Example: "He was charged with an unlawful act." Alternative expressions include "an illegal" and "a prohibited."
⚠ May contain grammatical issues
News & Media
Wiki
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
4 human-written examples
"You are up against a unlawful police state that has everything in its hands — security apparatuses, executive power, everything," Mr. Aswany added.
News & Media
Gold Fields, which is listed in Johannesburg, said 12,000 miners have been on a "unlawful and unprotected" strike at the KDC mine near Johannesburg since Wednesday.
News & Media
We want soldiers, when they go into a village in a strange country, when they are hurt or even understandably vengeful, or when they receive a unlawful or dishonorable order, to remember who they are; and yet, until today, that's precisely what we've been asking too many of them to forget.
News & Media
Didn't they realize that fucking dudes in their 20s was a) unlawful and b) creepy as fuck?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
He was captured and allegedly tortured in order to force him to confess to being a an "unlawful enemy combatant".
News & Media
Police arrived and arrested Daniel, then charged him with possession of a weapon for an unlawful purpose, unlawful possession of a weapon, making terroristic threats, and aggravated assault.
News & Media
Beginning at least in the early 19th century, England defined conspiracy as a combination "either to do an unlawful act or a lawful act by unlawful means".
Encyclopedias
That Thai law-enforcement officials had a hand in an unlawful abduction is, sadly, no great surprise.
News & Media
Mr. Monserrate's lawyers said his ouster was an unlawful coup, a choice of words the judge said he found to be "an ironic twist".
News & Media
The court said the trial judge could hear the government's evidence that a detainee was an unlawful combatant.
News & Media
A "trespasser" is an unlawful intruder.
News & Media
Expert writing Tips
Best practice
Verify the legality of the context before using this phrase; if the act is merely against specific rules rather than the law, consider using "unauthorized" or "impermissible".
Common error
Writers often mistakenly use "a" before 'unlawful' because they see the letter 'u' and assume it can take either article, similar to 'a university' (where 'u' sounds like a consonant /j/). However, in 'unlawful', the 'u' is a pure vowel sound, making "a unlawful" universally incorrect in formal writing.
Linguistic Context
In linguistic terms, "a unlawful" acts as an indefinite article followed by an adjective. However, according to Ludwig AI and standard English grammar, this specific combination is a mistake because the indefinite article 'a' should only precede words beginning with a consonant sound. In the phrase "a unlawful", the article fails to match the vowel sound of the adjective.
Frequent in
News & Media
75%
Wiki
15%
Science
5%
Less common in
Encyclopedias
3%
Formal & Business
1%
Reference
1%
Ludwig's WRAP-UP
In summary, while the phrase "a unlawful" appears in reputable sources like The New Yorker and The New York Times, it is recognized by Ludwig AI as a grammatical error. The correct form is always "an unlawful" because the word 'unlawful' begins with a vowel sound. Writers should be vigilant about the phonetic rule (sound-based) rather than the orthographic rule (letter-based) when choosing articles. For a more polished and professional tone, always opt for an unlawful or synonyms like "an illegal" to ensure your writing adheres to standard English conventions.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an unlawful
Corrects the grammatical error by using the appropriate indefinite article for a word starting with a vowel sound.
an illegal
Uses a more direct synonym that is widely interchangeable in legal and general contexts.
a prohibited
Suggests a specific type of illegality where an action is explicitly forbidden by law or regulation.
a wrongful
Focuses on the aspect of being contrary to justice or law, often used in civil litigation contexts.
an illicit
Carries a nuance of being forbidden by law, rules or custom, often with a slightly more formal tone.
an illegitimate
Refers to something not authorized by the law or not in accordance with accepted standards.
a criminal
Specifies that the unlawful act is a crime punishable by the state.
an unauthorized
Indicates that the action lacks legal or official permission, which may fall under the category of being unlawful.
a lawless
Describes a situation or act characterized by a total lack of legal restraint or order.
a noncompliant
Focuses on the failure to follow specific rules or standards rather than general illegality.
FAQs
Is it correct to say "a unlawful" or "an unlawful"?
It is grammatically correct to say "an unlawful". The choice between 'a' and 'an' depends on the sound of the next word. Since 'unlawful' starts with a vowel sound, 'an' is the correct choice.
Why do some news sources use "a unlawful"?
When you see "a unlawful" in news sources like The New York Times or The Guardian, it is usually a typo or a verbatim quote from a speaker. Standard editorial guidelines require "an unlawful".
What is a better way to phrase "a unlawful act"?
You should use "an unlawful act" or alternatively "an illegal act" for better flow and grammatical accuracy.
Does "a unlawful" change meaning in legal contexts?
No, the meaning remains the same, but the grammar remains incorrect. In legal writing, precision is key, so using "an unlawful" or "a wrongful" is necessary to maintain professional credibility.
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