Correct

坏习惯

/ huài xíguàn / 
Strokes

Example

As a Noun

bad habit

1
Yǎngchéng
养成
huài
坏
xíguàn
习惯

form/acquire/develop a bad habit

2
Gǎidiào
改掉
huài
坏
xíguàn
习惯

rid oneself of a bad habit; overcome a bad habit