mèn

be sick at heart

With a heavy  heart  also provides the pronunciation

Components
满 sound,meaning component

  Sound Meaning component

mǎn

  

fill

心 meaning component

  Meaning component

xīn

  

heart

Evolution

懑 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
懑 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
懑 Traditional script Modern

Traditional script

Modern
懑 Simplified script Modern

Simplified script

Modern
Definitions

() 

mèn

be sick at heart, sorrowful, sad; melancholy

Most common words with 懑
Freq.
Word
Meaning

愤懑

depressed

melancholy