stick to vs adhere

stick to and adhere both are verbs.

Word	Noun	Adjective	Verb	Adverb
stick to	No	No	Yes	No
adhere	No	No	Yes	No

As verbs, stick to and adhere are synonyms defined as:

Other synonyms of stick to include bind, bond, hold fast, stick.

stick to (verb)	adhere (verb)
keep to	follow through or carry out a plan without deviation
stick to firmly	stick to firmly
	come or be in close contact with; stick or hold together and resist separation
	be compatible or in accordance with
	be loyal to
	be a devoted follower or supporter