relax vs unstrain

relax and unstrain both are verbs.

Word	Noun	Adjective	Verb	Adverb
relax	No	No	Yes	No
unstrain	No	No	Yes	No

As verbs, relax and unstrain are synonyms defined as:

Other synonyms of relax include loosen up, make relaxed, unlax, unwind.

relax (verb)	unstrain (verb)
become less tense, rest, or take one's ease	cause to feel relaxed
cause to feel relaxed
make less taut
become loose or looser or less tight
make less active or fast
become less severe or strict
make less severe or strict
become less tense, less formal, or less restrained, and assume a friendlier manner