Correct

老顽固

/ lǎo wángù / 
Strokes

Example

As a Noun

old stick-in-the-mud; old fogy; old diehard

1
Zhè
这
jiāhuo
家伙
shì
是
gè
个
lǎowángù
老顽固
  
,
bù
不
róngyì
容易
shuōfú
说服
  
。

This fellow is opinionated and not susceptible to persuasion.