unstrain vs affect

unstrain is not a noun while affect is a noun.

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

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

unstrain (noun)	affect (noun)
	the conscious subjective aspect of feeling or emotion

unstrain (verb)	affect (verb)
cause to feel relaxed	act physically on; have an effect upon
	have an effect upon
	make believe with the intent to deceive
	have an emotional or cognitive impact upon
	connect closely and often incriminatingly