pagan

nouns

a person who does not acknowledge your god
gentile, heathen, infidel, pagan
is derived from
paganize
a person who follows a polytheistic or pre-Christian religion (not a Christian or Muslim or Jew)
pagan
is a type of (narrower)
a person who manifests devotion to a deity
religious person
someone motivated by desires for sensual pleasures
hedonist, pagan, pleasure seeker

adjectives

not acknowledging the God of Christianity and Judaism and Islam
ethnic, heathen, heathenish, pagan