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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
is completely clueless
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is completely clueless" is correct and usable in written English.
It can be used to describe someone who lacks understanding or awareness about a particular situation or topic. Example: "Despite the numerous explanations, he is completely clueless about how to solve the problem."
✓ Grammatically correct
News & Media
Academia
Alternative expressions(2)
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 see, if he's any indication, big business is completely clueless about both the economics and the politics of the situation.
News & Media
But Trump's twin deficits show that his party has been lying about its policy priorities, and that he is completely clueless about his signature policy issue.
News & Media
And Moffat-Gatiss also include an aspect of Holmes's intellect ignored by other screen versions: the fact that the great detective is completely clueless in some regards, that he wilfully ignores all aspects of "useless" knowledge – such as politics, philosophy and the fact that the earth revolves around the sun – that might otherwise clutter his mind.
News & Media
A financial planner I spoke to said she requires that all parties be present because so many times the woman is the relationship is "completely clueless" about where their money is invested and how much debt the family has.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
While students are using their dictionary app, they might notice a message, a Facebook notification, or something else -- and just like that, they're completely clueless AS to what IS going on in class.
News & Media
We were completely clueless about what we were getting into".
News & Media
In retrospect, I see that I was completely clueless.
News & Media
Ms. Alpert, unaware of his preoccupation, said, "I was completely clueless".
News & Media
Again referring to the British team, he added, "And they were completely clueless".
News & Media
Yet as I said, the only way to actually believe the modern G.O.P. catechism is to be completely clueless.
News & Media
They are completely clueless to the actual work that needs to be done and lack the institutional or breadth of knowledge to accomplish such a goal, since many were not hired from within.
Expert writing Tips
Best practice
Use "is completely clueless" when you want to emphasize a total lack of understanding or awareness about a specific subject. Ensure the context clearly defines what the person is clueless about for maximum impact.
Common error
While "is completely clueless" is acceptable in many contexts, avoid it in highly formal or professional documents. Opt for more nuanced and professional alternatives like "lacks sufficient information" or "demonstrates a limited understanding".
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is completely clueless" functions as a predicate adjective phrase. It describes the subject by ascribing to it the quality of being entirely uninformed or lacking understanding. Ludwig AI confirms that its use is grammatically correct.
Frequent in
News & Media
75%
Academia
25%
Science
0%
Less common in
Formal & Business
0%
Wiki
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "is completely clueless" is a grammatically sound and usable expression in English that describes a total lack of understanding or awareness. Ludwig AI analysis affirms its correctness. It is most commonly found in News & Media and Academia, but should be used with care in formal writing, where alternatives such as "lacks sufficient information" may be more appropriate. While "is completely clueless" is fairly interchangeable with alternatives like "is utterly unaware" or "is totally ignorant", its use depends on the specific nuance you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is totally ignorant
Replaces "clueless" with "ignorant", emphasizing a lack of knowledge.
is utterly unaware
Substitutes "completely clueless" with "utterly unaware", focusing on a lack of awareness.
has no understanding
Replaces the entire phrase with a more direct expression of lacking understanding.
is entirely uninformed
Similar to ignorant, but suggests a lack of information rather than inherent knowledge.
is absolutely oblivious
Emphasizes a lack of awareness and attention to what is happening.
doesn't have a clue
An idiomatic alternative that conveys the same meaning in a slightly more informal way.
is in the dark
Uses a metaphor to describe a state of being uninformed or unaware.
is way off base
Suggests that someone's assumptions or understanding are incorrect.
is barking up the wrong tree
Indicates a misguided approach due to a lack of understanding.
is missing the point
Highlights a failure to grasp the central or most important aspect of something.
FAQs
What does it mean to say someone "is completely clueless"?
Saying someone "is completely clueless" means they lack understanding or awareness about a particular situation or topic. It implies a total absence of knowledge or insight.
What can I say instead of "is completely clueless"?
You can use alternatives like "is totally ignorant", "is utterly unaware", or "has no understanding" depending on the context.
Is "is completely clueless" appropriate for formal writing?
While grammatically correct, "is completely clueless" is generally considered informal. For formal writing, consider alternatives like "lacks sufficient information" or "demonstrates a limited understanding".
What's the difference between "is completely clueless" and "is utterly unaware"?
Both phrases convey a lack of understanding, but "is completely clueless" implies a general lack of knowledge, while ""is utterly unaware"" focuses specifically on a lack of awareness of a particular situation.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested