おだやかな (translations)→ friendly gentle gorgeous mild nice politely soft softly
おちつく (translations)→ end relax
おとなしく (translations)→ calmly dutifully frosty humble impassively just meekly obediently passively patiently receptive silently smartly tamely
しずかな (translations)→ peacefulness quietly still
しんとした (translations)→ silence voiceless
そっと (translations)→ carefully cautiously covertly delicately discreetly ease furtive furtively gently gingerly guardedly lightly little loosely quick quickly secretly slight slowly stealthily stealthy tenderly tentative
のどかな (translations)→ idyllic innocent pastoral peaceful untroubled
のんびりした (translations)→ leisurely sleepy slow trusting
ひそかな (translations)→ clandestine personal private secret self-contained
ひそやかな (translations)→ faded muffle
ひっそり (translations)→ hush obscurity
ひっそりと (translations)→ absolutely secluded unassuming
異常なし (translations)→ clean normal
穏やかな (translations)→ benignant easy fair fast halcyon pacific peaceable peacefully piping silken sunny tolerant
暇 (translations)→ chance free leisure moment time unbusy
控えめ (translations)→ undemanding wan
控え目な (translations)→ guarded low-key uncommunicative
心がなごむ (translations)→ relent soothing
人気のない (translations)→ abandoned deserted empty solitary
声を殺して (translations)→ hoarsely
静かな (translations)→ slumberous
静けさ (translations)→ quietude serenity stillness
静寂 (translations)→ calm shroud sound
淡々とした (translations)→ colorless matter-of-fact
沈んだ (translations)→ brown deep depressed submerged
鎮める (translations)→ douse limit quash stem subdue