1) 完徹かんてつ Parts 完 徹 #62,828 Inflections of 完徹 Class Suru verb Stem Inflected ending ✕ Link copied! かんてつ [0] Meaning Shirabe Noun Suru verb Intransitive verb Colloquial all-nighter; staying up all night abbr. of 完全徹夜 おかげでほぼ完徹かんてつだ。 Thanks to which I was up nearly all night. Kanji 完 カン perfect, completion, end 徹 テツ penetrate, clear, pierce Forms 完徹#62,828完徹かんてつかんてつかんてつ