frosty

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Producing or characterized by frost; freezing. synonym: cold.
• adjective Covered with frost.
• adjective Silvery white; hoary.
• adjective Cold in manner; unfriendly.
• adjective Lacking enthusiasm.

from The Century Dictionary.

• Attended with or producing frost; so cold as to congeal water: as, frosty weather.
• Affected or injured by frost; containing or penetrated by frost; frozen; cold; dull.
• Figuratively, chill; chilling; without warmth, as of spirits, affection, or courage; tending to repel; discouraging; depressing.
• Resembling hoar frost; white; gray.
• Specifically, in entomology, glistening like hoar frost: an appearance generally due to minute white hairs.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Attended with, or producing, frost; having power to congeal water; cold; freezing.
• adjective Covered with frost.
• adjective Chill in affection; without warmth of affection or courage.
• adjective Appearing as if covered with hoarfrost; white; gray-haired.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Cold, chilly.
• adjective Having frost on it.
• adjective figuratively Having an aloof or inhospitable manner.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective devoid of warmth and cordiality; expressive of unfriendliness or disdain
• adjective covered with frost
• adjective pleasantly cold and invigorating