静謐 (せいひつ) uses the on'yomi 静 (セイ) for quiet and 謐 (ヒツ) for calm/peaceful. 謐 is an N1 kanji, often misread due to its rarity. Incorrect readings like せいべつ or せいしつ misread 謐, while じょうひつ incorrectly uses a rare on'yomi for 静. It describes a deep, profound tranquility or serenity, often in a grand or solemn context.

静謐（せいひつ）は両漢字とも音読み。静（セイ）は「しずか」、謐（ヒツ）は「おだやか」の意味。せいべつ・せいしつは謐の誤読、じょうひつは静の誤読です。深く静かで穏やかな状態、厳かなまでの静けさを指します。