1. (v. t.) To free from flexure; to make, or allow to become, straight; to loosen; as, to unbend a bow.

2. (n.) A remit from a strain or from exertion; to set at ease for a time; to relax; as, to unbend the mind from study or care.

3. (v. t.) To unfasten, as sails, from the spars or stays to which they are attached for use.

4. (v. t.) To cast loose or untie, as a rope.

5. (v. i.) To cease to be bent; to become straight or relaxed.

6. (v. i.) To relax in exertion, attention, severity, or the like; hence, to indulge in mirth or amusement.

abate bate bend disentangle ease ease off ease up extend flatten give give way let down let up let up on loose loosen loosen up mitigate put straight rectify relax relent remit set straight sit up slack slack off slack up slacken slake slow down smooth stand up straighten straighten out straighten up submit unbrace uncurl unkink unlax unsnarl unstrain unstring unwind yield