Wordnet 3.0
ADVERB (1)
1. 
 in a cold and icy manner; 
- Example: "`Mr. Powell finds it easier to take it out of mothers, children and sick people than to take on this vast industry,' Mr Brown commented icily"
The Collaborative International Dictionary of English v.0.48:
Icily \I"ci*ly\, adv.
   In an icy manner; coldly.
   [1913 Webster]
         Faultily faultless, icily regular, splendidly null,
         Dead perfection, no more.                --Tennyson.
   [1913 Webster]
WordNet (r) 3.0 (2006):
icily
    adv 1: in a cold and icy manner; "`Mr. Powell finds it easier to
           take it out of mothers, children and sick people than to
           take on this vast industry,' Mr Brown commented icily"