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
1 idiot.
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "1 idiot." is correct and usable in written English.
It can be used in contexts where you are identifying or referring to a single person in a derogatory manner. Example: "After the meeting, I couldn't help but think, 'There was 1 idiot who kept interrupting everyone.'"
✓ Grammatically correct
Science
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
If you use your laptop on your lap, or leave it plugged in all the time, you may well be cruising for what some experts call Picnic (Problem in Chair Not in Computer) or ID-10t (idiot) errors — computer problems caused by clueless users.
News & Media
Lunt-Fontanne Theater, 205 West 46th Street, (800) 745-3000, ticketmaster.com.20100318 'AMERICAN IDIOT' Previews start on Wednesday.
News & Media
16th over: West Indies 92-2 (Gayle 66, Lara 2) Some idiot behind the sightscreen (when will people learn?) delays the first ball, but Harmison is soon digging the ball in at Lara.
News & Media
3 Idiots is out now.
News & Media
Into this milieu now comes a new movie: "3 Idiots".
News & Media
It's better to have five emotionally sound pals than 50 idiots in your phone book.
News & Media
A film like 3 Idiots shows that India's education system is obsolete.
News & Media
(Prior to that, Khan's 3 Idiots had held the title for four years).
News & Media
Similarly, 3 Idiots is destined never to cross over despite its phenomenal success.
News & Media
His annual release, 3 Idiots has now become one of the top three biggest movies of all time and having seen it, well... it's sensational.
News & Media
The rollicking satire also packs a message, something typical of films by director Rajkumar Hirani, who first had international success with 3 Idiots, also starring Khan.
News & Media
Expert writing Tips
Best practice
When using "1 idiot.", consider the context and audience to ensure the tone is appropriate. Overuse can diminish its impact and may be perceived as unnecessarily harsh.
Common error
Avoid using "1 idiot." in formal or professional settings. Its informal and derogatory nature can damage your credibility and create a negative impression.
Source & Trust
60%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "1 idiot." functions primarily as a derogatory noun phrase, specifically used to label a single person as unintelligent or foolish. Ludwig AI confirms its correctness but notes its limited usage.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "1 idiot." is a grammatically correct but informal and derogatory expression used to label a single person as foolish or unintelligent. As Ludwig AI states, while usable, its appropriateness depends heavily on the context, and it is generally avoided in formal settings. Alternatives like "one fool" or "a single moron" may offer slightly different nuances, but all carry negative connotations. Its communicative purpose is to express disapproval or contempt.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
one fool
Replaces "idiot" with a less harsh synonym.
a single moron
Substitutes "idiot" with "moron", which carries a similar but potentially stronger negative connotation.
one imbecile
Replaces "idiot" with "imbecile", a more formal and clinical term implying intellectual deficiency.
a dimwit
A simple and direct synonym for "idiot", implying low intelligence.
a complete nincompoop
Uses a more whimsical and less offensive term for someone foolish.
utter simpleton
Emphasizes the simplicity or naivete of the person in question.
a total buffoon
Highlights the person's ridiculous or clownish behavior.
that numbskull
A slightly gentler, colloquial term for someone unintelligent.
that blockhead
Suggests a lack of intelligence or understanding.
some dolt
Highlights the person's clumsiness or lack of social grace.
FAQs
How can I use "1 idiot." in a sentence?
You can use "1 idiot." when referring to a single person you consider foolish or unintelligent, as in, "After the presentation, there was "1 idiot" who kept asking irrelevant questions." Be mindful of the context and audience when using this phrase.
What are some alternatives to "1 idiot."
Depending on the context, you could use alternatives such as "one fool", "a single moron", or "one incompetent person" to convey a similar meaning with varying degrees of formality.
Is it appropriate to use "1 idiot." in professional communication?
No, using "1 idiot." is generally inappropriate in professional communication. It's best to opt for more neutral or polite language to maintain professionalism and avoid causing offense.
What is the difference between "1 idiot." and "a mistake"?
"1 idiot." refers to a person, implying foolishness or lack of intelligence, while "a mistake" refers to an error or incorrect action. They are not interchangeable, as one describes a person and the other describes an action or event.
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
60%
Authority and reliability
3.5/5
Expert rating
Real-world application tested