unbend vs decompress

unbend and decompress both are verbs.

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

As verbs, unbend and decompress are synonyms defined as:

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

unbend (verb)	decompress (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	decrease the pressure of
make less taut	restore to its uncompressed form
free from flexure
unfasten, as a sail, from a spar or a stay
straighten up or out; make straight