Correct

吃不下

/ chībuxià / 
Strokes

Definition

not feel like eating/be unable to eat any more

Example

As a Verb

not feel like eating; cannot finish a meal; cannot eat due to loss of appetite; be unable to eat any more

1
Tā
他
xīnqíng
心情
bùhǎo
不好
  
,
chī
吃
bu
不
xià
下
fàn
饭
  
。

He was in the doldrums and didn't feel like eating.