placid Synonyms

smooth equable unruffled even-tempered good-tempered quiet still tranquil whist windless waveless undisturbed unmoved unagitated temperate stormless stolid stoical stoic stilly steady soundless unalarming at peace imperturbable unexcitable untroubled unflappable self-controlled unemotional unexcited unflustered unsurprised nonviolent laid-back easygoing level-headed levelheaded unworried mild-mannered unmoving nonbelligerent unperturbed serene dispassionate equanimous even fulfilled gentle halcyon