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
No sign yet of the Qualcomm fixes from last month which triggered a U.S. government update mandate for federal staff, with a deadline that was impossible to hit.
—
Zak Doffman, Forbes.com, 8 July 2025
Nowadays, both men and women are serving faster than ever before, with players regularly reaching service speeds that were once thought to be nearly impossible.
—Ben Church, CNN Money, 8 July 2025
Booking commercial flights with connections to get back to California in time were looking impossible.
—Don Norcross, San Diego Union-Tribune, 7 July 2025
Suburban-style zoning has become widespread not just in suburbs proper, but also in core cities, many of which have adopted similar zoning codes that would have made their original growth and housing diversity impossible.
—Marina Bolotnikova, Vox, 7 July 2025
See All Example Sentences for impossible
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Zak Doffman, Forbes.com, 8 July 2025
Nowadays, both men and women are serving faster than ever before, with players regularly reaching service speeds that were once thought to be nearly impossible.
—Ben Church, CNN Money, 8 July 2025
Booking commercial flights with connections to get back to California in time were looking impossible.
—Don Norcross, San Diego Union-Tribune, 7 July 2025
Suburban-style zoning has become widespread not just in suburbs proper, but also in core cities, many of which have adopted similar zoning codes that would have made their original growth and housing diversity impossible.
—Marina Bolotnikova, Vox, 7 July 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 18 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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