1. (n.) The state or quality of being inclement; want of clemency; want of mildness of temper; unmercifulness; severity.

2. (n.) Physical severity or harshness (commonly in respect to the elements or weather); roughness; storminess; rigor; severe cold, wind, rain, or snow.

absolute zero acuteness algidity animality astringency atrocity austerity barbarity bitterness bleakness bloodlust briskness brutality chill chilliness cold coldness cool coolness coolth crispness cruelty cryogenics cryology decrease in temperature destructiveness extremity ferociousness fierceness flintiness force freezing point freshness frigidity frostiness furiousness gelidity grimness hardness harshness heartlessness iciness impetuosity inexorableness inhumanity intense cold intensity keenness low temperature malignity mercilessness mindlessness murderousness nip nippiness pitilessness rawness relentlessness remorselessness rigor roughness ruthlessness savagery severity sharp air sharpness short shrift sternness stringency tender mercies terrorism uncompassionateness unfeelingness unforgivingness ungentleness unmercifulness unremorsefulness unsympatheticness unyieldingness vandalism vehemence venom viciousness violence virulence