To free from flexure; to make, or allow to become, straight; to loosen.to unbend a bow
To remit from a strain or from exertion; to set at ease for a time; to relax.to unbend the mind from study or care
ShakespeareYou do unbend your noble strength.
To unfasten, as sails, from the spars or stays to which they are attached for use.
To cast loose or untie, as a rope.
To cease to be bent; to become straight or relaxed.
To relax in exertion, attention, severity, or the like; hence, to indulge in mirth or amusement.
1918, Edgar Rice Burroughs, The Land That Time Forgot (novel) Chapter VIHe spent the afternoon shaping a swagger-stick from the branch of jarrah and talking with Miss La Rue, who had sufficiently unbent toward him to notice his existence.
