HSK 6 HSK V7-9
Correct

顽固

/ wán gù / 
Strokes

Collocation

1
很顽固
2
性格顽固
3
顽固不化
4
顽固守旧
5
顽固分子

Definition

顽固 is an Adjective, which means[ obstinate; stubborn; headstrong / bitterly opposed to change; die-hard].

Example

As an Adjective.
1
Nǐ
你
yě
也
tài
太
wángù
顽固
le
了
  
,
zěnme
怎么
yīdiǎnr  
一点儿
yě
也
tīng
听
bù
不
jìn
进
biéren
别人
de
的
yìjiàn
意见
ne
呢
  
?

You are also too stubborn, why can't you listen to other people's opinions at all?

2
Jiǎoqì
脚气
hěn
很
wángù
顽固
  
,
bùhǎo
不好
zhìyù
治愈
  
。

Beriberi is stubborn and difficult to cure.