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Showing results for impossible. Search instead for impossibi.
Definitions

impossible

[im-pos-uh-buhl] / ɪmˈpɒs ə bəl /
ADJECTIVE
beyond the bounds of possibility
Synonyms
STRONGEST
absurd futile hopeless impassable impractical inaccessible inconceivable insurmountable preposterous unattainable unimaginable unreasonable unthinkable unworkable useless
STRONG
visionary
WEAK
beyond contrary to reason cureless hardly possible hundred-to-one impervious impracticable inexecutable infeasible irrealizable irreparable no-go no-win not a prayer out of the question too much unachievable uncorrectable unfeasible unobtainable unrecoverable way-out
Antonyms
STRONGEST
believable conceivable hopeful imaginable logical practical reasonable sensible
WEAK
achievable obtainable possible
ADJECTIVE
intolerable, ungovernable
Synonyms
STRONGEST
absurd hopeless ludicrous outrageous preposterous unacceptable unreasonable
STRONG
offensive undesirable
WEAK
egregious improper incongruous objectionable unanswerable unsuitable
Antonyms
STRONGEST
acceptable
STRONG
pleasing
WEAK
achievable believable governable manageable tenable tolerable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Scott-Heron’s lunar criticism is not so much concerned with the otherworldly as a space for imagining the earthly impossible, but for assembling earthly sites of decolonization and liberation.

From Salon • Apr. 7, 2026

This can be an especially tough situation if you need a car ASAP, because it’s impossible to increase your credit score 100 points overnight.

From MarketWatch • Apr. 7, 2026

Grimes said it was almost impossible to see a micrometeorite with the naked eye.

From BBC • Apr. 4, 2026

The problem: Naval escorts for tankers through such a narrow waterway in a war zone would be nearly impossible, say allied officials and military experts.

From The Wall Street Journal • Apr. 4, 2026

It’s impossible for me to do my job and pose as the photographer would like me to.

From "The Brightwood Code" by Monica Hesse

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.