straighten, unbend -- (straighten up or out; make straight)
unbend -- (unfasten, as a sail, from a spar or a stay)
unbend -- (free from flexure; "unbend a bow")
relax, unbend -- (make less taut; "relax the tension on the rope")
relax, loosen up, unbend, unwind, decompress, slow down -- (become less tense, rest, or take one's ease; "He relaxed in the hot tub"; "Let's all relax after a hard day's work")
unbend -- (release from mental strain, tension, or formality; "unbend the mind from absorbing too much information")
Overview of adj unbent
The adj unbent has 2 senses
unbent -- (not bent; "looking for an unbent nail"; "trees with straight unbent trunks make the best lumber")
straight, unbent, unbowed -- (erect in posture; "sit straight"; "stood defiantly with unbowed back")
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