impossible
adjective
im·pos·si·ble
(ˌ)im-ˈpä-sə-bəl 
1
a
: incapable of being or of occurring
b
: felt to be incapable of being done, attained, or fulfilled : insuperably difficult
an impossible deadline
2
a
: extremely undesirable : unacceptable
b
: extremely awkward or difficult to deal with
the actor was impossible on the set
impossibleness
noun
Examples of impossible in a Sentence
It's impossible to predict the future.
The heavy rain made it impossible to see the road.
It's physically impossible for a child to lift that much at once.
It's virtually impossible to book a flight just before the holiday.
These math problems are impossible!
You refuse to help and then criticize me for not doing it right? You're impossible!
My boss is just an impossible woman.
Recent Examples on the Web
Her latest volume, the National Book Award winner Something About Living, is full of impossible cohesions, offering this straight-on singularity of body and mind to birds, grammars, and architectures.
—
Cindy Juyoung Ok
june 26, Literary Hub, 26 June 2025
The exponential growth of data from observability and monitoring has made human analysis nearly impossible.
—Peter High, Forbes.com, 26 June 2025
Testing also identified saliva on the shirt, although Ibar was excluded as being the contributor — which the defense alleges would be impossible because the assailant wiped his face with the shirt on the video.
—Grethel Aguila, Miami Herald, 26 June 2025
All Hurtigruten ships are small enough to access the most scenic fjords and remote locations that are impossible for larger cruise liners to navigate.
—AFAR Media, 26 June 2025
See All Example Sentences for impossible
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Cindy Juyoung Ok
june 26, Literary Hub, 26 June 2025
The exponential growth of data from observability and monitoring has made human analysis nearly impossible.
—Peter High, Forbes.com, 26 June 2025
Testing also identified saliva on the shirt, although Ibar was excluded as being the contributor — which the defense alleges would be impossible because the assailant wiped his face with the shirt on the video.
—Grethel Aguila, Miami Herald, 26 June 2025
All Hurtigruten ships are small enough to access the most scenic fjords and remote locations that are impossible for larger cruise liners to navigate.
—AFAR Media, 26 June 2025
See All Example Sentences for impossible
Cite this Entry
“Impossible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impossible. Accessed 11 Jul. 2025.
Copy CitationKids Definition
impossible
adjective
im·pos·si·ble
(ˈ)im-ˈpäs-ə-bəl
1
a
: incapable of being or of occurring
b
: very difficult : hopeless
an impossible situation
2
: very bad or unpleasant
an impossible person
impossibly
adverb
-blē
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