下くだり階かい段だんMeaningsNoun1. descending staircaseKanji used下below階floor (of a building)段stepComposed of下くだりdown-train; train heading toward the ending point of its route; down-slope; downward going; downbound (esp. away from Tokyo); downstream; downhillNoun階かい段だんstairs; stairway; staircaseNoun