Ismailian vs adherent

Ismailian and adherent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ismailian	Yes	No	No	No
adherent	Yes	Yes	No	No

As nouns, adherent is a hypernym of Ismailian; that is, adherent is a word with a broader meaning than Ismailian:

Ismailian: an adherent of Ismailism; a member of the Ismaili branch of Shiism
adherent: someone who believes and helps to spread the doctrine of another

Other hypernyms of Ismailian include disciple.

Ismailian (noun)	adherent (noun)
an adherent of Ismailism; a member of the Ismaili branch of Shiism	someone who believes and helps to spread the doctrine of another

Ismailian (adjective)	adherent (adjective)
	sticking fast