Denshi Jisho — Online Japanese dictionary

安静 あんせい rest; quiet; repose
Common word, Na-adjective, Noun 
閑静 かんせい quiet (e.g. neighbourhood, neighborhood)
Common word, Na-adjective, Noun 
沈静 ちんせい stillness; tranquility; tranquillity; dullness
Common word, Na-adjective, Noun 
動静 どうせい state; condition; movements
Common word, Noun 
平静 へいせい calm; serenity; tranquillity; tranquility
Common word, Na-adjective, Noun 
冷静 れいせい calm; composure; coolness; serenity
Common word, Na-adjective, Noun 
虚静 きょせい calm and free of ambition or care
Noun 
静静 しずしず quietly; slowly
Adverb 
寂静 せきせい calmness; stillness; tranquility
Noun, Na-adjective 
鎮静 ちんせい calm; quiet; tranquility; tranquillity; appeasement; pacification
Noun, Suru verb, No-adjective 
幽静 ゆうせい profoundly quiet; serene
Na-adjective 
寂静 じゃくじょう 1: calmness; stillness; tranquility;
2: (Noun) (Buddhist term) calmness of the heart; enlightenment
Noun, Na-adjective 
絶対安静 ぜったいあんせい complete bed rest; complete rest and quiet
Noun 
沈着冷静 ちんちゃくれいせい calm, cool, and collected; level and calm
Noun, Na-adjective 

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