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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
unfounded opinion
Grammar usage guide and real-world examplesUSAGE SUMMARY
'unfounded opinion' is a correct and usable phrase in written English.
You can use it when speaking of an opinion that is not supported by facts or based in reality. For example, "John's unfounded opinion about the economy is not based on any facts."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(17)
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
3 human-written examples
A spokesman for Mr. Ovitz said in a statement, "The plaintiffs' expert based his unfounded opinion on nothing more than second- and third-hand hearsay and gossip".
News & Media
Because these students lack competent research skills they use sources that lack credibility and accuracy such as Wikipedia and unfounded opinion blogs that compound this problem.
News & Media
Stay away from questions that can be answered by sharing one's unfounded opinion or by stating a simple "yes" or "no".
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
While Mr. Krugman may be reacting to unfounded opinions by politicians, the effect of his article is to suppress any open discussion of global warming.
News & Media
Apparently, the company instead believes that "Nest Labs' counterclaims are self-serving characterizations based on that company's unfounded opinions and speculations, which are irrelevant to Honeywell's valid claims of patent infringement".
News & Media
Bias includes ignoring contrary evidence, misappropriating evidence to make conclusions appear different than they are, and imparting one's own, unfounded opinions on a text.
Wiki
A candidate that has to win your vote by first scaring you with unfounded opinions and then making promises to protect you may be like a bully getting your lunch money for not beating you up.
Wiki
Doubt your negative interpretations of what you "heard" or saw; suspend judgment of subtle ideas or actions, and avoid groundless beliefs (unfounded opinions) or thinking that you have everything all figured out... Realize that people will treat you better when you do not accuse them of wronging you, "bad mouthing" you or opposing you.
Wiki
Although Hrudey may feel this concern is misplaced or unfounded, that opinion does not reflect the feelings of those who live in Fort Chipewyan.
Several studies have shown a pronounced "backfire effect" in response to countering unfounded political opinions with factual evidence to the contrary.
News & Media
Jones also believes that talk of the French domestic game being unsustainable were unfounded, in his opinion.
News & Media
Expert writing Tips
Best practice
When criticizing an "unfounded opinion", provide specific counter-evidence or logical reasoning to demonstrate its lack of basis. Do not simply dismiss it without explanation.
Common error
Just because an opinion is "unfounded" doesn't necessarily make it false; it simply means it lacks a solid basis. Investigate and challenge, but don't assume automatic invalidity.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unfounded opinion" functions as a noun phrase where the adjective "unfounded" modifies the noun "opinion". This describes the quality of the opinion, indicating it lacks a solid basis or evidence. As Ludwig AI suggests, it is correct and usable in written English.
Frequent in
News & Media
33%
Wiki
33%
Science
33%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "unfounded opinion" is a grammatically correct and usable term, as confirmed by Ludwig AI, used to describe an opinion lacking a basis in fact or evidence. While categorized as rare in frequency, its usage spans across news, wiki, and scientific contexts. When encountering an "unfounded opinion", it's crucial to provide counter-evidence rather than simply dismissing it. Remember that even if an opinion is "unfounded", it shouldn't be automatically assumed as false as it can be used as initial point of investigation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
baseless opinion
Focuses on the lack of a base or foundation for the opinion.
groundless opinion
Highlights the absence of grounds or reasons supporting the opinion.
unsubstantiated opinion
Emphasizes the lack of evidence or proof to back up the opinion.
unsupported opinion
Similar to unsubstantiated, stressing the absence of support.
unreasoned opinion
Indicates that the opinion is not based on logical reasoning or rational thought.
speculative opinion
Suggests the opinion is based on conjecture or guesswork rather than facts.
conjectural opinion
Similar to speculative, implying the opinion is a hypothesis or guess.
tenuous opinion
Highlights that the opinion is held weakly or is poorly supported.
indefensible opinion
Stresses that the opinion cannot be justified or defended with evidence.
arbitrary opinion
Emphasizes that the opinion is based on random choice or personal whim.
FAQs
How can I identify an "unfounded opinion"?
An "unfounded opinion" lacks supporting evidence or logical reasoning. Look for opinions presented as facts without credible sources or justifications.
What's the difference between an "unfounded opinion" and a "/s/misguided+opinion"?
While both lack validity, a "unfounded opinion" simply lacks a basis, whereas a "misguided opinion" is based on faulty reasoning or incorrect information.
Is it always wrong to have an "unfounded opinion"?
Not necessarily. Tentative or speculative opinions, even if "unfounded" at first, can serve as starting points for further inquiry and investigation.
What are some alternatives to saying "unfounded opinion"?
Depending on the context, you could use alternatives like "baseless opinion", "groundless opinion", or "speculative opinion".
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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
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested