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
what a nightmare
Grammar usage guide and real-world examplesUSAGE SUMMARY
"what a nightmare" is a correct and usable phrase in written English.
It is an idiomatic expression used to express extreme frustration, disappointment, or disbelief. Example: "I can't believe I lost my wallet on the way to the airport. What a nightmare!".
✓ 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
58 human-written examples
(What a nightmare).
News & Media
Tiridate: Jesus, / What a nightmare.
News & Media
"God, what a nightmare," she said.
News & Media
"No one has any idea what a nightmare we lived".
News & Media
"What a nightmare!" "Now, now," she said soothingly.
News & Media
("What's the missionary position?" she asks.) What a nightmare!
News & Media
I just think what a nightmare it all was".
News & Media
"What a nightmare this would be for my vegetarian friends," I thought.
News & Media
The police were "very professional," Mr. Glauser said, but "that's when I realized what a nightmare this was".
News & Media
"We appreciate what a nightmare Guantánamo has been for the United States," says Vicky Trager, a village board member.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
The life-changing sentence came at the beginning of an article entitled, "What Makes a Nightmare Sports Parent and What Makes a Great One," which described powerful insights gathered over three decades by Bruce E. Brown and Rob Miller of Proactive Coaching LLC.
News & Media
Expert writing Tips
Best practice
Use "what a nightmare" to express strong feelings of frustration or disbelief about a situation that is particularly unpleasant or difficult. This phrase is suitable for informal communication.
Common error
While effective, overusing "what a nightmare" can diminish its impact. Vary your expressions with synonyms like "what a disaster" or "how awful" to maintain engagement and prevent your language from sounding repetitive.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "what a nightmare" functions primarily as an exclamatory expression. It serves to express a strong negative reaction to a situation, conveying feelings of frustration, dismay, or disbelief. Ludwig AI confirms this phrase is correct and usable in written English.
Frequent in
News & Media
87%
Wiki
3%
Huffington Post
8%
Less common in
Formal & Business
0%
Science
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "what a nightmare" is a common and correct exclamatory phrase used to express strong negative feelings about a situation. Ludwig AI validates its usability in English. While it's suitable for informal communication, it's important to be mindful of overuse and consider using synonyms like "what a disaster" or "how awful" to maintain variety in your language. The phrase is frequently found in News & Media and serves to communicate intense unpleasantness or difficulty. While grammatically sound and widely understood, remember to tailor your language to suit the context and audience.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
what a disaster
Replaces "nightmare" with "disaster", emphasizing the catastrophic nature of the situation.
what a mess
Uses "mess" instead of "nightmare", highlighting the chaotic and disorganized aspect of the situation.
how awful
Simplifies the expression to a more direct statement of how terrible something is.
what a catastrophe
Substitutes "nightmare" with "catastrophe", stressing the severe and damaging impact.
what a tragedy
Replaces "nightmare" with "tragedy", focusing on the sorrowful and unfortunate nature of the event.
what a horror show
Emphasizes the terrifying and unpleasant nature of the situation, using a more vivid term.
what a fiasco
Replaces "nightmare" with "fiasco", highlighting the complete and embarrassing failure.
what a predicament
Uses "predicament" instead of "nightmare", focusing on the difficult and troublesome situation.
what a bind
Replaces "nightmare" with "bind", suggesting a restrictive and unpleasant circumstance.
what a pain
Simplifies to a more informal expression of annoyance and inconvenience.
FAQs
How can I use "what a nightmare" in a sentence?
You can use "what a nightmare" to express strong feelings of frustration or dismay about a particularly unpleasant situation. For example: "The traffic was terrible this morning; what a nightmare!"
What's a more formal alternative to "what a nightmare"?
While "what a nightmare" is generally informal, you could use phrases like "how unfortunate", "what a disaster", or "what a predicament" in more formal contexts.
When is it appropriate to use the expression "what a nightmare"?
It's appropriate to use "what a nightmare" when you want to express strong negative feelings about a situation that is causing significant inconvenience, frustration, or distress. It's best suited for informal settings or when communicating with close acquaintances.
Is there a difference between saying "what a nightmare" and "that's a nightmare"?
While both express negative sentiment, "what a nightmare" is an exclamation expressing immediate dismay or frustration. "That's a nightmare" is more of a statement acknowledging a difficult 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
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested