Correct

郁结

/ yùjié / 
Strokes

Definition

to suffer from pent-up frustrations/mental knot/emotional issue

Example

As a Verb

be pent-up

1
Yùjié
郁结
de
的
fènmèn
愤懑
  
/
qínggǎn
情感
  
/
jǔsàng
沮丧

pent-up anger/emotion/frustration