Read the dictionary definition of unbend. All definitions for this word.
1. release from mental strain, tension, or formality
1. unbend the mind from absorbing too much information
2. become less tense, rest, or take one's ease
1. He relaxed in the hot tub
2. Let's all relax after a hard day's work
3. make less taut
1. relax the tension on the rope
4. free from flexure
1. unbend a bow
5. unfasten, as a sail, from a spar or a stay
6. straighten up or out; make straight