WordNet sense 1 (not melted):

unmelted

WordNet sense 2 (devoid of warmth and cordiality; expressive of unfriendliness or disdain):

frigid, frosty, glacial, wintry

WordNet sense 3 (extended meanings; especially of psychological coldness; without human warmth or emotion):

cold

WordNet sense 4 (absolutely still):

stock-still, rooted

WordNet sense 5 (not in motion):

nonmoving, unmoving

WordNet sense 6 (covered with or containing or consisting of ice):

icy

WordNet sense 7 ((used of foods) preserved by freezing sufficiently rapidly to retain flavor and nutritional value):

quick-frozen, flash-frozen

WordNet sense 8 (prevented from decaying or spoiling and prepared for future use):

preserved

WordNet sense 9 ((of assets) unavailable for use):

nondisposable

WordNet sense 10 (incapable of being changed or moved or undone; e.g.):

fixed

WordNet sense 11 (not changeable or subject to change):

unchangeable