ag‧nos‧tic /æɡˈnɒstɪk, əɡ- $ -ˈnɑː-/ noun [countable]
[Date: 1800-1900; Language: Greek; Origin: agnostos 'unknown, unknowable', from a- 'not' + gnostos 'known']
someone who believes that people cannot know whether God exists or not ⇒ atheist
—agnostic adjective
—agnosticism /-təsɪzəm, -tɪsɪzəm/ noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲

god a male spirit or being who is believed by some religions to control the world or part of it, or who represents a particular quality:
Odin was the Viking god of war.
goddess a female god:
Artemis, the Greek goddess of the moon
deity a god. Deity is more formal than god:
a Hindu deity
Roman deities
the Supreme Deity
idol a picture or statue that people pray to as a god:
a bronze idol
atheist noun, adjective someone who believes that God does not exist:
I’m a confirmed atheist.
agnostic noun, adjective someone who believes that people cannot know whether God exists or not:
He was an agnostic rather than an atheist.

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religious relating to religion:
the country's religious leaders
the importance of religious freedom
spiritual relating to matters of the human spirit, rather than the physical world:
The Dalai Lamai is the exiled spiritual leader of Tibet.
We tend to ignore people's spriritual needs, and focus too much on material things.
spiritual values
holy [usually before noun] connected with God and religion, and therefore treated in a special way – used especially in the following phrases:
the Holy Bible
the holy city of Mecca
a Hindu holy man
They believe they are fighting a holy war.
The priest puts some holy water on the child's head.
sacred connected with God and religion, and therefore treated in a special way – used especially in the following phrases:
This place is sacred to both Jews and Muslims.
In India, cows are considered sacred.
the Hindu sacred texts
sacred music
a sacred ritual
theological relating to the study of religion or to religious beliefs:
a theological debate
theological training
secular not relating to religion or controlled by a religious authority:
secular education
secular matters
In the UK we live in a much more secular society.
devout having a very strong belief in a religion:
a devout Catholic
orthodox believing in the traditional beliefs, laws, and practices of a religion:
orthodox Jews
atheist noun, adjective someone who does not believe that God exists:
She says she is an atheist.
atheist propaganda
agnostic noun, adjective someone who believes that people cannot know whether God exists or not:
I think I'd describe myself as an agnostic.
a group of prominent agnostic scientists

[TahlilGaran] English Thesaurus ▲