monotheistnounspecialized
The group includes not only atheists and agnostics but also deists and those who maintained other religious affiliations.
The Greeks and Romans defined an atheist not as someone who disbelieved in God but as someone who rejected the traditional gods who protected the social order.
Parents who are atheists do not want prayer imposed on their children in school.

SMART Vocabulary: related words and phrases

Religious people: believers & non-believers
anti-evolution
anti-evolutionary
anti-evolutionist
anti-humanist
antichrist
deist
evolutionist
faithful
faithless
faithlessly
libertine
monotheist
mystic
non-believer
secularist
the laity
theist
theistic
unbelief
unbeliever
atheist
adjective
 religionuk /ˈeɪ.θi.ɪst/ us /ˈeɪ.θi.ɪst/(alsoatheistic, uk /ˌeɪ.θiˈɪs.tɪk/ us /ˌeɪ.θiˈɪs.tɪk/)
not believing in any God or gods, or relating to such beliefs:
Although I am atheist, I don’t just automatically hate religion or dismiss other people's faith.
Kaufman claims that his atheist beliefs play a central role in his life.
My husband is not religious, in fact, he's actively atheist.
My atheist brother said to me, "How can you believe in a God when children die of terrible diseases?"
Internet-based groups are seeking to spread the atheist message.

SMART Vocabulary: related words and phrases

Religious people: believers & non-believers
anti-evolution
anti-evolutionary
anti-evolutionist
anti-humanist
antichrist
deist
evolutionist
faithful
faithless
faithlessly
libertine
monotheist
mystic
non-believer
secularist
the laity
theist
theistic
unbelief
unbeliever

atheist | American Dictionary

atheist
noun[ C ]
us/ˈeɪ·θi·ɪst/
someone who believes that God does not exist

atheistic

adjectiveus/ˌeɪ·θiˈɪs·tɪk/
atheistic books and articles