しっけいせんばん 失敬千万 LinksSentence search for 失敬千万Sentence search for しっけいせんばんKanji details for 失, 敬, 千 and 万Edit in JMdict Na-adjective (keiyodoshi)1. extremely rude (impertinent, impolite)Yojijukugo (four character compound) Discussions Log in to talk about this word.