· straighten up or out; make straight
Synonym(s): straighten
Hypernym(s): change_posture
· unfasten, as a sail, from a spar or a stay
Hypernym(s): unfasten
· free from flexure; "unbend a bow"
Hypernym(s): straighten, straighten_out
Antonym(s): bend
· make less taut; "relax the tension on the rope"
Synonym(s): relax
· 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"
Synonym(s): relax, loosen_up, unwind, decompress, slow_down
Hypernym(s): change_state, turn
· release from mental strain, tension, or formality; "unbend the mind from absorbing too much information"
Hypernym(s): relax, unstrain, unlax, loosen_up, unwind, make_relaxed