Correct

失言

/ shīyán /
Strokes

Definition

slip of the tongue/indiscretion/to blurt out a secret

Example

As a Verb

make an indiscreet remark; have a lapse/slip of the tongue

1
guò
不过
shì
shí
shīyán
失言
  

That's just a slip of the tongue.

2
Rén
yǒushí
有时
nánmiǎn
难免
huì
shīyán
失言
  

A few slips of the tongue are inevitable.

3
Jiǔhòushīyán
酒后失言

make an indiscreet remark under the influence of alcohol