Correct

轻淡

/ qīng dàn / 
Strokes

Example

As an Adjective

faint; dim

1
Qīng
轻
dàn
淡
de
的
jìyì
记忆

faint/dim memory

2
Qīngdàn
轻淡
dì
地
yī
一
xiào
笑

give a faint smile

As an Adjective

casual; random

3
Qīngdàn
轻淡
dì
地
tánqǐ
谈起

casually mention sth