Dictionary and Thesaurus

Definition of Impossible

• (a.) Not possible; incapable of being done, of existing, etc.; unattainable in the nature of things, or by means at command; insuperably difficult under the circumstances; absurd or impracticable; not feasible.
• (n.) An impossibility.

Synonyms of Impossible

• Inconceivable
• Out Of The Question
• Unimaginable
• Insufferable
• Unacceptable
• Unsufferable

Antonyms of Impossible

• Possible

Homophones of Impossible