tempestuous Antonyms

unperturbed sunshiny sunny summery still stable smooth serene relaxant relaxed rational quiet tranquil unmoved unruffled unbothered untroubled unfazed even-tempered nonviolent unclouded level-headed laid-back unagitated undisturbed warm poised pleasing pleasant cool-headed cool composed collected cold-blooded cloudless clement clear calm bright balmy equable fair friendly placid peaceful peaceable nocturne moderate mild leeward