fastened vs unfastened

fastened and unfastened both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fastened	No	Yes	No	No
unfastened	No	Yes	No	No

fastened (adjective)	unfastened (adjective)
firmly closed or secured	not closed or secured
furnished or closed with buttons or something buttonlike	not buttoned
fastened with strings or cords	not tied
	affording unobstructed entrance and exit; not shut or closed