Correct

馊

/ sōu / 
Strokes

Definition

rancid/soured (as food)

Example

As a Verb

sour; turn sour/tart; smell; go rotten

1
Niúnǎi
牛奶
bù
不
lěngcáng
冷藏
huì
会
sōu
馊
de
的
  
。

Milk spoils if not refrigerated.

As an Adjective

(of an idea, etc) lousy; stupid