もんがいふしゅつ 門外不出 LinksSentence search for 門外不出Sentence search for もんがいふしゅつKanji details for 門, 外, 不 and 出Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. (treasuring something by) never taking (it) off the premisesYojijukugo (four character compound) Discussions Log in to talk about this word.