The Collaborative International Dictionary of English v.0.48:

Chilly \Chill"y\, a.
   Moderately cold; cold and raw or damp so as to cause
   shivering; causing or feeling a disagreeable sensation of
   cold, or a shivering.
   [1913 Webster]

WordNet (r) 3.0 (2006):

chilly
    adj 1: not characterized by emotion; "a female form in marble--a
           chilly but ideal medium for depicting abstract
           virtues"-C.W.Cunningham
    2: appreciably or disagreeably cold [syn: chilly, parky]
    3: lacking warmth of feeling; "a chilly greeting"
    n 1: very hot and finely tapering pepper of special pungency
         [syn: chili, chili pepper, chilli, chilly, chile]