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
did not define
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "did not define" is correct and usable in written English.
You can use it when discussing something that was not clearly explained or specified. Example: "The report did not define the parameters of the study, leading to confusion among the team."
✓ Grammatically correct
News & Media
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
He did not define "troubles".
News & Media
But it did not define either term.
News & Media
Their jobs did not define them.
News & Media
The article did not define "ordinary".
News & Media
The hospital initially did not define "minimally".
News & Media
The president did not define "high".
News & Media
It did not define "reasonable costs".
News & Media
Maybe they did not define a generation.
News & Media
But the legislation did not define small business.
News & Media
She did not define what would constitute a clean athlete.
News & Media
(The Pew survey did not define the term).
News & Media
Expert writing Tips
Best practice
When using "did not define", ensure the context clearly indicates what should have been defined. This avoids ambiguity and strengthens the critique.
Common error
Avoid using "did not define" without a clear subject or reference. For instance, instead of "It was not defined", specify "The policy did not define eligibility criteria."
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "did not define" functions as a verb phrase used to indicate the absence of a clear or precise definition for a term, concept, or item. Ludwig AI confirms its grammatical correctness and wide usage.
Frequent in
News & Media
50%
Science
44%
Formal & Business
3%
Less common in
Reference
1%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, the phrase "did not define" is a grammatically correct and common way to express that something lacks a clear or precise definition. As Ludwig AI confirms, it is widely used across various fields, including news, science, and formal business contexts. When using this phrase, ensure you provide sufficient context about what lacks definition to avoid any ambiguity. Alternatives like "failed to define" or "did not specify" can offer similar meanings with slightly different nuances.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
failed to define
Indicates a failure to provide a definition, emphasizing the omission.
left undefined
Highlights the state of being without a definition, focusing on the result.
did not specify
Emphasizes the absence of specific details or criteria.
did not clarify
Focuses on the lack of clarification or explanation.
omitted the definition of
Highlights the act of leaving out the definition.
did not delineate
Focuses on the absence of clear boundaries or distinctions.
did not explain
Emphasizes the lack of explanation or interpretation.
remained vague about
Highlights the lack of clarity or precision.
provided no definition for
Emphasizes the complete absence of a definition.
did not detail
Indicates a lack of detailed information or specification.
FAQs
How can I use "did not define" in a sentence?
You can use "did not define" to point out the lack of clarity or specification. For example, "The contract "did not define" the scope of work."
What's a more formal way to say "did not define"?
A more formal alternative could be "failed to specify" or "omitted the definition of". For instance, "The report "failed to specify" the methodology used."
What is the difference between "did not define" and "did not explain"?
"Did not define" indicates a lack of a formal definition, while "did not explain" suggests a lack of explanation or interpretation. For example, "The manual "did not define" the technical terms, and "did not explain" the underlying principles."
When is it appropriate to use "did not define" in writing?
It's appropriate when you need to criticize or point out a lack of clarity, precision, or completeness. Example: "The regulations "did not define" the criteria for compliance, creating confusion among stakeholders."
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested