一いっ本ぽん調ぢょう子し

na-adjective, noun which may take the genitive case particle 'no', noun

monotonous; lacking variety; one-note

Describes speech, music, or a way of doing things that is flat, unchanging, and without variation. Often used critically.

• 彼かれのスピーチは一いっ本ぽん調ちょう子しで、聴ちょう衆しゅうはすぐに飽あきてしまった。

  His speech was monotonous, and the audience quickly got bored.

• この曲きょくは一いっ本ぽん調ちょう子しで、ずっと同おなじリズムが続つづく。

  This song is monotonous; the same rhythm continues throughout.