Definition of: unbend

(un·bend′) v. ·bent, ·bend·ing v.t.
1. To relax, as from exertion or formality: to unbend the mind.
2. To straighten (something bent or curved).
3. To relax, as a bow, from tension.
4. Naut. a To loose; untie, as a rope. b To detach or remove (a sail) from a spar or stay.
—v.i.
5. To become free of restraint or formality; relax.
6. To become straight or nearly straight again.