Correct

疏失

/ shūshī / 
Strokes

Definition

to make a (careless) mistake/oversight

Example

As a Noun

careless mistake; remissness

1
Tā
他
gōngzuò
工作
yīzhí
一直
shūshī
疏失
dàyì
大意
  
。

He has always been remiss in his work.