隠密裏 おんみつり Also written 隠密裡 Meanings な-adjective (in) secrecy; behind closed doors (usu. adverbially as 〜に) See also: 秘密裏 (ひみつり). Kanji 隠 hide. Read as オン. 密 dense. Read as ミツ. 裏 behind. Read as リ. Jinuma: Japanese Dictionary · Word lists