How to read: てきしつ、ちゃくしつ
Pronunciation: 
Same names and idioms in reading:
敵失
Names and idioms with total stroke of 23:
花穏 算砂 勇綺 支離 義躬
Names and idioms similar to 嫡室:
室江 室茂 仮庵室 暖室 司令室
Yojijukugo(idioms with 4 Kanji characters) including 嫡室:
滴水嫡凍 同室操戈 仏籬祖室