Definition of frosty

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