fastened vs tied

fastened and tied both are adjectives.

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

As adjectives, fastened and tied are synonyms defined as:

fastened (adjective)	tied (adjective)
firmly closed or secured	fastened with strings or cords
furnished or closed with buttons or something buttonlike	closed with a lace
fastened with strings or cords	bound or secured closely
	of the score in a contest
	bound together by or as if by a strong rope; especially as by a bond of affection