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's impossible
Grammar usage guide and real-world examplesAlternative expressions(20)
highly improbable
unlikely
unachievable
unattainable
out of the question
wouldn't be possible
impossible scenarios
visionary goals
could not happen
should never happen
is not feasible
cannot be done
is unattainable
is not viable
is out of the question
is simply not an option
is unachievable
is beyond reach
never possible
considered impossible
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
20 human-written examples
"I know what's impossible; what's possible, I don't know," Shkelzen Maliqi, director of the Center for Humanistic Studies said as he contemplated a strong cup of espresso in a cafe in Pristina.
News & Media
Think what's possible, not what's impossible.
News & Media
They surprise us with the improbable – they don't know what's impossible.
News & Media
The single most powerful element of youth is our inability to know what's impossible.
News & Media
As the world changes, those who pretend to have all the answers are often left in the dust by those who don't realize what's impossible.
News & Media
They already know what's impossible.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
In an age when military personnel sitting in a trailer outside Las Vegas can pilot a drone to rain death-by-joystick on terrorists in Pakistan, what's really impossible?
News & Media
(If I do, try this: In an I.R.V. election, if a candidate has a majority of first votes, that candidate is elected — because, er, he or she has a majority of first votes. What's mathematically impossible about that?) Perhaps the governor meant that if no candidate receives a majority of first choices, then — er, no candidate has received a majority of first choices.
News & Media
It's pretty easy to use social media tools like SocialRank, Buffer, Sumo, and more to identify social influence and monitor performance, but what's nearly impossible to track is dark social — the communication through text, email, messaging, Slack, Skype, and so on that's becoming the majority of social communication.
News & Media
Although everyone in the family tries to live with what's happened, it's impossible.
News & Media
Without fail, the camera lens reflects what's too often impossible to notice while I'm trying to be fully present with my students.
News & Media
Expert writing Tips
Best practice
When using "what's impossible", consider the context to ensure the phrase accurately conveys the degree of impossibility you intend. Sometimes, a more nuanced phrase might be more appropriate.
Common error
Avoid using "what's impossible" when describing situations that are merely difficult or unlikely, as this can weaken your argument and create an impression of exaggeration. Instead, consider using alternatives like "highly improbable" or "unlikely".
Source & Trust
87%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "what's impossible" primarily functions as a noun phrase or a subject complement. It refers to the abstract concept of things that cannot be done or achieved. As Ludwig highlights, examples range from describing political impossibilities to personal limitations.
Frequent in
News & Media
60%
Wiki
20%
Formal & Business
10%
Less common in
Academia
5%
Science
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "what's impossible" is a versatile phrase used to describe concepts or tasks considered unachievable. Ludwig's analysis reveals that it commonly appears in news and media, often to discuss challenges or boundaries. While grammatically correct and frequently used, writers should be mindful of overstating impossibility when difficulty or improbability is more accurate. As the examples on Ludwig showcase, this phrase serves to define limits, inspire innovation by questioning those limits, or simply to express doubt. Overall, it's a common and effective way to address the boundaries of possibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
What is unachievable
Directly states the impossibility of achieving something.
What cannot be done
Focuses on the inability to perform an action, highlighting the action itself rather than a general state.
What is not feasible
Emphasizes the practicality or viability of something.
That which cannot happen
Emphasizes the certainty that something will not occur.
What is unattainable
Highlights the difficulty or impossibility of reaching a goal or object.
What defies possibility
Highlights the extraordinary or unbelievable nature of something.
What is out of the question
Suggests a firm rejection or exclusion of something.
What is beyond reach
Emphasizes the distance or difficulty in attaining something.
What lacks possibility
Focuses on the absence of potential or chance for something to occur.
What is hopeless
Conveys a sense of despair or lack of hope regarding a situation.
FAQs
How can I use "what's impossible" in a sentence?
You can use "what's impossible" to describe something that cannot be achieved or imagined. For example, "Understanding the universe's origins feels like grasping "what's impossible"."
What are some alternatives to "what's impossible"?
Alternatives include "unachievable", "unattainable", or "out of the question", depending on the specific nuance you want to convey.
Is it grammatically correct to say "what's impossible"?
Yes, "what's impossible" is grammatically correct. It uses "what's" as a contraction of "what is" followed by the adjective "impossible".
In what contexts is "what's impossible" commonly used?
"What's impossible" is commonly used in contexts where discussing limitations, challenges, or things that are deemed unachievable, often in discussions about technology, personal goals, or hypothetical scenarios.
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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
87%
Authority and reliability
4.3/5
Expert rating
Real-world application tested