Correct

火性

/ huǒ xìng / 
Strokes

Example

As a Noun

bad temper; hot temper

1
Tā
他
suī
虽
shì
是
gè
个
huǒ
火
xìngzi
性子
  
,
xīndì
心地
què
却
hěn
很
shànliáng
善良
  
。

Hot-tempered as he is, he has his heart in the right place.