fevered Antonyms

nipping self-possessed septentrional serene siberian sleety smarting snithy stagnant rimy relaxed northern numb numbing peaceful piercing poised polar quiet stinging stone-cold together at ease bone-chilling cold as ice untroubled unflappable self-controlled unengaged unperturbed nippy hawkish tranquil unruffled wintery undisturbed knifelike air-conditioned laid-back hiemal extremely cold algid brumal calm centered chill chilled chilling chilly circumpolar