急転直下 きゅうてんちょっか Meanings Noun, する verb, Intransitive suddenly and precipitately; take a sudden turn Kanji 急 sudden. Read as キュウ. 転 turn. Read as テン. 直 straight. Read as チョク. 下 down. Read as カ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists