Correct

适得其反

/ shì de qí fǎn / 
Strokes

Definition

to produce the opposite of the desired result

Example

Definition

accomplish just the reverse/opposite; be exactly contrary to what one wished; have an opposite effect; produce exactly the opposite result; run counter to one's desire; be counter-productive

1
Tā
他
de
的
wēixié
威胁
chǎnshēng
产生
le
了
shìdeqífǎn
适得其反
de
的
jiēguǒ
结果
  
。

His threat has backfired.

2
Jiéshí
节食
guòdù
过度
huì
会
shìdeqífǎn
适得其反
  
。

Excessive dieting will be counter-productive.

3
Běn
本
xiǎng
想
shuōfú
说服
tā
他
  
,
jiēguǒ
结果
shìdeqífǎn
适得其反
  
。

The attempts to persuade him seem to be backfiring.