unbend

straighten up or out; make straight

unfasten, as a sail, from a spar or a stay

free from flexure

• “unbend a bow”

make less tight

• “relax the tension on the rope”

become less tense, rest, or take one''s ease

• “He relaxed in the hot tub”
• “Let”
• “s work”

release from mental strain, tension, or formality

• “unbend the mind from absorbing too much information”