1. (

• straighten ,
• unbend

) straighten up or out; make straight ;

2. (

• unbend ,

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

3. (

• unbend

) free from flexure; "unbend a bow" ;

4. (

• relax ,
• unbend

) make less taut; "relax the tension on the rope" ;

5. (

• 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" ;

6. (

• unbend

) release from mental strain, tension, or formality; "unbend the mind from absorbing too much information" ;

1. (

• unbent

) not bent; "looking for an unbent nail"; "trees with straight unbent trunks make the best lumber" ;

2. (

• straight ,
• unbent ,
• unbowed

) erect in posture; "sit straight"; "stood defiantly with unbowed back" ;