From WordNet (r) 2.0 (August 2003) [wn]:
chilly
adj 1: uncomfortably cool; "a chill wind"; "chilly weather" [syn:
chill]
2: not characterized by emotion; "a female form in marble--a
chilly but ideal medium for depicting abstract
virtues"-C.W.Cunningham
3: lacking warmth of feeling; "a chilly greeting"; "an
unfriendly manner" [syn: unfriendly]
n : very hot and finely tapering pepper of special pungency
[syn: chili, chili pepper, chilli, chile]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
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]