Correct

跌宕

/ diēdàng /
Strokes

Definition

uninhibited/free and unconstrained/rhythmical

Example

As an Adjective

(of disposition) free and easy; bold and unconstrained

1
Jiǎnào
简傲
diēdàng
跌宕

be proud and unrestrained

2
Diēdàng
跌宕
不羁

be free and unrestrained

As an Adjective

(of music) flowing rhythmically

3
shēng
歌声
diēdàng
跌宕

sing in cadence

As an Adjective

(of writing) undulating; varied

4
shì
故事
qíngjié
情节
diēdàng
跌宕起伏
  

The story is full of twists in its plot. / The plot of the story is full of twists.