しのこ 忍び込む Show inflections LinksSentence search for 忍び込むSentence search for しのびこむSentence search for 忍びこむSentence search for 忍込むKanji details for 忍 and 込Edit in JMdict Godan verb with 'mu' ending, Intransitive verb1. to creep in; to steal in; to sneak inOther forms忍びこむ 【しのびこむ】、忍込む 【しのびこむ】 Discussions Log in to talk about this word.