隠密 おんみつ secret #23,182 Meanings na-adjective, takes の secret; clandestine; covert; stealthy noun, historical spy (for a daimyo, shogun, etc.); secret agent Its kanji 隠 イン、オン · かく.す、かく.し、かく.れる、よ.る conceal, hide, cover 密 ミツ · ひそ.か secrecy, density (pop), minuteness, carefulness