regretful

Components
忄 meaning component

  Meaning component

xinxīn

  

heart

heart

无 sound component

  Sound component

  

negative

Evolution

怃 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
怃 Clerical script Eastern Han dynasty (25-220 AD)

Clerical script

Eastern Han dynasty (25-220 AD)
怃 Clerical script Western Jin dynasty (266-316 AD)

Clerical script

Western Jin dynasty (266-316 AD)
怃 Simplified script Modern

Simplified script

Modern
Definitions

() 

regretful, disappointed; disappointed; startled