"frosty" in the adjective sense
1. frigid, frosty, frozen, glacial, icy, wintry
devoid of warmth and cordiality expressive of unfriendliness or disdain
"a frigid greeting"
"got a frosty reception"
"a frozen look on their faces"
"a glacial handshake"
"icy stare"
"wintry smile"
2. frosty, rimed, rimy
covered with frost
"a frosty glass"
"hedgerows were rimed and stiff with frost"-Wm.Faulkner
3. crisp, frosty, nipping, nippy, snappy
pleasantly cold and invigorating
"crisp clear nights and frosty mornings"
"a nipping wind"
"a nippy fall day"
"snappy weather"
Source: WordNet® (An amazing lexical database of English)
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