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
warned against
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "warned against" is a correct and usable part of a sentence in written English.
You can use it to indicate that someone had cautioned or advised someone to avoid or be careful of something. For example: The doctor warned against eating too much sugar.
✓ Grammatically correct
News & Media
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
Wenger, though, warned against complacency.
News & Media
He warned against gay rights.
News & Media
The amateurs warned against this enterprise.
News & Media
Republicans, however, warned against overzealous regulation.
News & Media
Mr. Assad has warned against any intervention.
News & Media
Two years ago, I warned against it.
News & Media
They're also warned against treating injuries.
News & Media
And he warned against succumbing to fear.
News & Media
Pearce warned against complacency.
News & Media
Some warned against panic.
News & Media
Mr. Zwilling warned against comparisons.
News & Media
Expert writing Tips
Best practice
Pair "warned against" with strong verbs or adverbs to amplify the sense of urgency or importance. For example, "strongly warned against" or "repeatedly warned against".
Common error
Avoid using "warned against" in situations where a simple suggestion or recommendation is more appropriate. It implies a significant risk or negative outcome, so reserve it for serious situations.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "warned against" functions as a verb phrase indicating that someone has given a caution or advice to avoid a specific action or situation. Ludwig AI indicates this phrase is correct and usable in written English.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "warned against" is a common and grammatically sound way to express caution or advice against something. As confirmed by Ludwig AI, it is appropriate for various contexts, especially in news and media. To use the phrase effectively, clearly state the potential negative consequences, and reserve it for situations where genuine risks are involved. While alternatives like "cautioned about" or "advised against" exist, "warned against" is suitable for most scenarios requiring a neutral tone.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
advised against
Implies giving formal or professional advice to avoid something.
counseled against
Indicates providing guidance or recommendations to avert a specific action.
dissuaded from
Suggests actively persuading someone not to do something.
discouraged from
Emphasizes a lack of support or enthusiasm for a particular course of action.
cautioned about
Focuses on alerting someone to potential dangers or problems.
expressed reservations about
Highlights doubts or concerns regarding a certain matter.
expressed concern about
Emphasizes a worry regarding possible negative consequences.
voiced opposition to
Conveys a clear and explicit disapproval or resistance.
put someone on their guard about
Highlights the action of making someone cautious or suspicious.
alerted to the dangers of
Focuses on drawing attention to specific risks or hazards.
FAQs
How is "warned against" used in a sentence?
The phrase "warned against" is used to indicate that someone has cautioned or advised against doing something, highlighting potential risks or negative consequences. For example, "The doctor "advised against" strenuous exercise after surgery".
What are some alternatives to "warned against"?
Alternatives to "warned against" include "cautioned about", "advised against", or "dissuaded from", depending on the context and the level of emphasis you want to convey.
Is it more formal to say "warned against" or "cautioned against"?
"Warned against" and "cautioned against" are generally interchangeable and carry a similar level of formality. The choice often depends on personal preference or the specific nuance you wish to convey.
Can "warned against" be used in all contexts?
"Warned against" is most appropriate when there is a genuine risk or negative consequence associated with a particular action. In less serious situations, phrases like "suggested avoiding" or "recommended against" may be more suitable.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested