unbend (
http://definr.com/unbend)
v 1: straighten up or out; make straight [syn:
straighten]
[ant:
bend]
2: unfasten, as a sail, from a spar or a stay
3: free from flexure, as of a bow [ant:
bend]
4: make less tight; "relax the tension on the rope" [syn:
relax]
5: become less tense; "He relaxed in the hot tub" [syn:
relax,
loosen up,
unwind,
decompress,
slow down] [ant:
tense]
6: release from mental strain, tension, or formality; "unbend
the mind from absorbing too much information"