一本調子 いっぽんぢょうし Also written いっぽんちょうし Meanings な-adjective, の-adjective, Noun monotone; monotonous; dull; lacking variety Kanji 一 one. Read as イチ. 本 origin. Read as ホン. 調 tune. Read as チョウ. 子 child. Read as シ. Example sentences 彼はその詩を一本調子で朗読した。He read the poem in a monotone. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists