Antonyms of verb unwind

1 of 4 senses of unwind

Sense 1
unwind, wind off, unroll -- (reverse the winding or twisting of; "unwind a ball of yarn")
       Antonym of wind (Sense 3)
      => wind, wrap, roll, twine -- (arrange or or coil around; "roll your hair around your finger"; "Twine the thread around the spool"; "She wrapped her arms around the child")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb unwind

4 senses of unwind

Sense 1
unwind, wind off, unroll -- (reverse the winding or twisting of; "unwind a ball of yarn")
       => move, displace -- (cause to move or shift into a new position or place, both in a concrete and in an abstract sense; "Move those boxes into the corner, please"; "I'm moving my money to another bank"; "The director moved more responsibilities onto his new assistant")

Sense 2
unwind, disentangle -- (separate the tangles of)
       => undo -- (cancel, annul, or reverse an action or its effect; "I wish I could undo my actions")

Sense 3
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")
       => change state, turn -- (undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election")

Sense 4
relax, unstrain, unlax, loosen up, unwind, make relaxed -- (cause to feel relaxed; "A hot bath always relaxes me")
       => affect -- (act physically on; have an effect upon; "the medicine affects my heart rate")