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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
that must be nice
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that must be nice" is correct and usable in written English.
It is typically used to express a sense of envy or acknowledgment of someone's positive situation or experience. Example: "You just got a promotion? That must be nice!"
✓ Grammatically correct
News & Media
Alternative expressions(20)
easy for you to say
this is fun
lucky you
that must be painful
that appears difficult
that must be true
That sounds challenging
that must be tough
that must be fun
that presents a challenge
that sounds rough
that must be hard
that sounds difficult
that seems challenging
that sounds harder
that sounds hard
that sounds unpleasant
that sounds daunting
that sounds extreme
that sounds lovely
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
9 human-written examples
(Wow. Ibiza-based! That must be nice).
News & Media
That must be nice.
News & Media
"That must be nice," I said.
News & Media
"Yes, sir," said Aziz. "Very much," said I. "That must be nice," he said sourly.
News & Media
That must be nice, I'd think, before remembering how much I loved London and how much Nick didn't love where I grew up.
News & Media
"I said, 'Right after this, Mr. President, I'm getting on a scooter and I'm going to disappear into the flow of thousands of people.' He got this look on his face and said, 'That must be nice.' " Tom Vitale, the episode's director, who is in his mid-thirties and has an air of harried intensity, stopped by to check with Bourdain about a shoot that was planned for later that evening.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
"When I encounter women whose sisters are their best friends, I am so tremendously envious, because that must be really, really nice, but that's not my experience," she says.
News & Media
The blown kiss causes Friedman to remark that the clerk had "not a care in the world," leading him to conclude that it must be "nice to be a Swiss" and not have to spend time "agonizing over the proper use of force against Bashar al-Assad," or feel any duty to "the global commons".
News & Media
I would make a joke about our phones having nicer UIs, except that our phones now have UIs that must be a thousand times nicer.
News & Media
Knowing that, it must be nice to go in with this many capable pitchers.
Academia
The Danish designer Kay Bojesen, who was born in 1886 and died in 1958, believed that objects must be nice to hold and a pleasure to look at.
News & Media
Expert writing Tips
Best practice
Use "that must be nice" when you want to express envy or acknowledge someone's positive situation, but be mindful of your tone to avoid sounding overly sarcastic or bitter.
Common error
While "that must be nice" is acceptable in casual conversation, it can sound inappropriate or unprofessional in formal or business contexts. Opt for more neutral or genuinely congratulatory language in those situations.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that must be nice" functions primarily as an acknowledgment of someone else's good fortune or positive experience. It can also carry a secondary function of expressing envy or mild sarcasm, depending on the context and tone. As confirmed by Ludwig, the phrase is grammatically correct and usable.
Frequent in
News & Media
42%
Academia
12%
Wiki
9%
Less common in
Science
9%
Formal & Business
9%
Reference
9%
Ludwig's WRAP-UP
In summary, the phrase "that must be nice" is a grammatically correct expression used to acknowledge another person's positive experience, often with a hint of envy. Ludwig confirms its usability, though its frequency is considered uncommon. The phrase is most frequently found in news and media, academic texts, and wikis, but its use should be approached with caution in formal settings to avoid sounding sarcastic. To express a similar sentiment, alternatives like "that sounds lovely" or "how wonderful for you" can be employed. Be aware of your tone, and consider adding follow-up questions to ensure genuine interest.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
must be great
A more concise and informal way to express the same sentiment.
that sounds lovely
Changes the focus from 'nice' to 'lovely', implying a pleasant experience.
that must be pleasant
Substitutes 'nice' with 'pleasant', offering a slightly more formal tone.
that sounds ideal
Replaces 'nice' with 'ideal', suggesting a perfect or highly desirable situation.
how wonderful for you
Expresses congratulations with a hint of envy.
lucky you
Directly expresses envy about someone's good fortune.
I'm sure that's enjoyable
A more subdued and perhaps slightly sarcastic way to acknowledge someone's positive experience.
that's the life
Implies that someone is enjoying an enviable lifestyle.
I wish I could
Expresses a desire to be in the same fortunate situation.
easy for you to say
Suggests that someone's situation makes them unable to understand another's difficulties.
FAQs
What does "that must be nice" mean?
The phrase "that must be nice" is typically used to express envy, mild sarcasm, or acknowledgment of someone's fortunate situation or experience. It often implies that the speaker wishes they were in a similar position.
When is it appropriate to use "that must be nice"?
It's appropriate to use "that must be nice" in informal conversations with friends or acquaintances when acknowledging something positive in their lives. However, avoid using it in formal settings or with people you don't know well, as it can come across as sarcastic or insincere.
What are some alternative phrases to "that must be nice"?
You can use alternatives like "that sounds lovely", "how wonderful for you", or "lucky you depending on the context".
How can I avoid sounding sarcastic when using "that must be nice"?
To avoid sounding sarcastic, use a warm and genuine tone of voice, and follow up with a sincere question or comment about the person's experience. This shows that you're genuinely interested and not just expressing envy.
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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
4.5/5
Expert rating
Real-world application tested