stone-cold

from WordNet (r) 3.0 (2006)

stone-cold
    adj 1: completely cold; "by the time he got back to his coffee
           it was stone-cold"

from The Collaborative International Dictionary of English v.0.48

Stone-cold \Stone"-cold`\, a.
   Cold as a stone.
   [1913 Webster]

         Stone-cold without, within burnt with love's flame.
                                                  --Fairfax.
   [1913 Webster]