unbend vs unstrain

unbend and unstrain both are verbs.

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

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

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

unbend (verb)	unstrain (verb)
release from mental strain, tension, or formality	cause to feel relaxed
become less tense, rest, or take one's ease
make less taut
free from flexure
unfasten, as a sail, from a spar or a stay
straighten up or out; make straight