heathen vs idoliser

heathen and idoliser both are nouns.

Word	Noun	Adjective	Verb	Adverb
heathen	Yes	Yes	No	No
idoliser	Yes	No	No	No

As nouns, idoliser is a hyponym of heathen; that is, idoliser is a word with a more specific, narrower meaning than heathen:

Other hyponyms of heathen include paynim, idol worshiper, idolater, idolizer.

heathen (noun)	idoliser (noun)
a person who does not acknowledge your god	a person who worships idols
	a lover blind with admiration and devotion

heathen (adjective)	idoliser (adjective)
not acknowledging the God of Christianity and Judaism and Islam