
Impossibility
Perceived Challenge
Emphasizes the speaker's belief that the obstacle cannot be overcome.

Winning the championship this year is an impossibility after the recent injuries.
Absoluteness
Signals a finality or end of discussion on a subject, nothing further can be done.

A peaceful resolution seemed an absolute impossibility at that point.
Compare with
AbilityHopelessImpracticabilityImprobabilityLikelihood
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