Unwind
Part of speech: verb
Definition: To wind off; to loose or separate; to untwist; to untwine; as, to unwind thread, to unwind a ball of yarn To disentangle - Richard Hooker To relax; to chill out; as, to rest and relieve of stress To be or become unwound; to be capable of being unwound or untwisted.
Example sentence: Cooking is the best way to unwind at the end of a long writing day. There's something mindless and hands-on about cooking, which makes it feel like the very opposite of writing, which is heady but inactive.
Unbend
Part of speech: verb
Definition: To free from flexure; to make, or allow to become, straight; to loosen; as, to unbend a bow.A remit from a strain or from exertion; to set at ease for a time; to relax; as, to unbend the mind from study or care.To unfasten, as sails, from the spars or stays to which they are attached for use.To cast loose or untie, as a rope.To cease to be bent; to become straight or relaxed.To relax in exertion, attention, severity, or the like; hence, to indulge in mirth or amusement.