Correct

不打紧

/ bù dǎjǐn / 
Strokes

Definition

unimportant/not serious/it doesn't matter/never mind

Example

As an Adjective

unimportant; of no consequence (at all)

1
Yǒudiǎnr  
有点儿
gǎnmào
感冒
  
,
bù
不
dǎjǐn
打紧
de
的
  
。

It's just a cold, nothing serious.

2
Shāngdiàn
商店
de
的
chuānghu
窗户
pò
破
le
了
bù
不
dǎjǐn
打紧
  
,
zhǐyào
只要
nǐ
你
méi
没
shāng
伤
zhāo
着
jiù
就
hǎo
好
  
。

Don't worry about having broken the shop window; I hope you haven't hurt yourself.