Definition of heartbound in US English:

heartbound

adjective

  • 1Having the heart entirely devoted (to a person or thing); emotionally in thrall to. Now archaic and poetic.

  • 2Originally: pitiless, hard-hearted. Later more generally: having the heart closed off from sympathy, uncaring. Now rare.

Origin

Late 16th century; earliest use found in Philip Sidney (1554–1586), author and courtier. From heart + bound.

Pronunciation

heartbound

/ˈhɑːtˌbaʊnd/