Definition from Wiktionary, the free dictionary
- (idiomatic) Very cold; lacking any semblance of warmth.
- I forgot to turn on the burner under the soup and found it sitting there, still stone cold, twenty minutes later.
- (idiomatic) Certain; definite; obvious.
- Interest rate rise a 'stone-cold certainty' despite industry plea (The Independent, 6 November 2006)