adherence vs stickiness

adherence and stickiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
adherence	Yes	No	No	No
stickiness	Yes	No	No	No

As nouns, stickiness is a hypernym of adherence; that is, stickiness is a word with a broader meaning than adherence:

adherence: the property of sticking together (as of glue and wood) or the joining of surfaces of different composition
stickiness: the property of sticking to a surface

adherence (noun)	stickiness (noun)
faithful support for a cause or political party or religion	the property of sticking to a surface
the property of sticking together (as of glue and wood) or the joining of surfaces of different composition