A snowball's chance in hell.
[Idiom] A SNOWBALL'S CHANCE IN HELL. - Discussing Phrases for Impossibility
No chance.
'A snowball's chance in hell' describes an extremely low probability, suggesting something is nearly impossible. The idiom creatively uses the imagery of a snowball surviving in hell – clearly an impossible scenario due to the intense heat – to starkly highlight the unlikelihood of an event or outcome.
Example Sentences
Winning the lottery has a snowball's chance in hell.
Winning the lottery is extremely unlikely.
They had a snowball's chance in hell of getting tickets to the sold-out concert.
They had almost no chance of getting tickets to the sold-out concert.
Despite practicing, he had a snowball's chance in hell of making the team.
Despite practicing, he had no chance of making the team.