Impossible definition
Not capable of being done easily or conveniently.
adjective
Not capable of being endured, used, agreed to, etc. because disagreeable or unsuitable.
An impossible task, an impossible request.
adjective
The definition of impossible is something that cannot be done, that cannot be true, or it also is something or someone who is hard to deal with.
Walking to the moon is an example of something that would be described as impossible.
Someone who is really demanding, and who is never pleased no matter what, is an example of someone who would be described as impossible.
adjective
Not possible, not able to be done.
It is difficult, if not impossible, to memorize 20,000 consecutive numbers.
adjective
(colloquial, of a person) Very difficult to deal with.
You never listen to a word I say – you're impossible!
adjective
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(uncountable) (with definite article) That which seems impossible.
If we work together, we can achieve the impossible!
noun
Not capable of being accomplished.
An impossible goal.
adjective
Incapable of having existence or of occurring.
adjective
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Unacceptable; intolerable.
Impossible behavior.
adjective
Extremely difficult to deal with or tolerate.
An impossible child; an impossible situation.
adjective
Not capable of being, being done, or happening.
adjective
Other Word Forms
Noun
Singular:
impossible
Plural:
impossiblesOrigin of impossible
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From American Heritage Dictionary of the English Language, 5th Edition
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From Wiktionary