Source : Webster's Revised Unabridged Dictionary (1913)

Coldly \Cold"ly\, adv.
   In a cold manner; without warmth, animation, or feeling; with
   indifference; calmly.

         Withdraw unto some private place, And reason coldly of
         your grievances.                         --Shak.

Source : WordNet®

coldly
     adv : in a cold unemotional manner; "he killed her in cold blood"
           [syn: {in cold blood}, {without emotion}]