"iciest" 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. arctic, frigid, gelid, glacial, icy, polar
extremely cold
"an arctic climate"
"a frigid day"
"gelid waters of the North Atlantic"
"glacial winds"
"icy hands"
"polar weather"
3. icy
covered with or containing or consisting of ice
"icy northern waters"
4. icy
shiny and slick as with a thin coating of ice
"roads and trees glazed with an icy film"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License