ˌstone-ˈcold BrE AmE adjective , adverb
1 . if something is stone-cold, it is completely cold even though it should be warm or hot:
Dinner was stone-cold by the time I got home.
2 . stone-cold sober having drunk no alcohol at all
3 . American English if a player or sports team is stone-cold, they are not able to get any points