obdurately (adverb)

1. The dragon obdurately refused to surrender, even when faced with an army of knights.

2. In the movie, the obdurately evil villain never showed any remorse for his actions.

3. The old, obdurately designed mansion stood out in contrast to the modern buildings surrounding it.

4. The obdurately stubborn goddess refused to grant the wishes of the desperate mortal.