chalk and cheese(Redirected from different as chalk and cheese)
Attested in variant form since 1393. The surface of some cheeses, particularly unaged ones, looks similar to chalk – white, crumbling – but in substance cheese is much softer than chalk.
- (Britain, New Zealand, idiomatic) Said of things that are superficially alike but very different in substance.
superficially alike but different
- "chalk and cheese", World Wide Words, Michael Quinion