unbend

verb

1. 1

   To remove a bend so as to make, or allow to become, straight

   “to unbend a bow”

2. 2

   To release (a load) from a strain or from exertion; to set at ease for a time; to relax.

   “to unbend the mind from study or care”

3. 3

   To unfasten sails from the spars or stays to which are attached for use.

4. 4

   To cast loose or untie

   “Unbend the rope.”

5. 5

   To cease to be bent; to become straight.

6. 6

   To relax in exertion, attention, severity, or the like

7. 7

   To enjoy oneself; to become affable and free from formality