duty-bound
- s under a moral obligation to do something
- Most people don't want to think about the work Tiller did, but some had no choice either they needed to see him or they felt duty-bound to try to stop him.
- Because of this, the letter says, Muslims are duty-bound by the Koran to treat believers of other faiths with respect and friendship and that Muslims expect the same in return.
- Those that survive are duty-bound to do everything to avoid a repeat.