unwind in WordNet English dictionary

1. 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"
   relax  loosen up  unbend  unwind  decompress  slow down 
   
2. separate the tangles of
   unwind  disentangle 
   
3. cause to feel relaxed
   "A hot bath always relaxes me"
   relax  unstrain  unlax  loosen up  unwind  make relaxed 
   
4. reverse the winding or twisting of
   "unwind a ball of yarn"
   unwind  wind off  unroll