unbend vs relax

unbend and relax both are verbs.

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

As verbs, relax is a hypernym of unbend; that is, relax is a word with a broader meaning than unbend:

Other hypernyms of unbend include loosen up, make relaxed, unlax, unstrain, unwind.

As verbs, unbend and relax are synonyms defined as:

Other synonyms of unbend include decompress, loosen up, slow down, unwind.

As verbs, unbend and relax are synonyms defined as:

unbend (verb)	relax (verb)
release from mental strain, tension, or formality	become less tense, rest, or take one's ease
become less tense, rest, or take one's ease	cause to feel relaxed
make less taut	make less taut
free from flexure	become loose or looser or less tight
unfasten, as a sail, from a spar or a stay	make less active or fast
straighten up or out; make straight	become less severe or strict
	make less severe or strict
	become less tense, less formal, or less restrained, and assume a friendlier manner