Those unaffiliated with any religious group — AKA the "Nones" — often are misrepresented as those who "don't believe in anything" or who "don't care about religion." In fact, the group is far more diverse than that. Nones may refer to any of the following: Agnostics: Those who don't know whether God exists, and do not think it's possible for anyone to know.
Anti-theists: Those who are opposed to religion and/or the belief in a deity or deities.
Apatheist: Those who are indifferent to belief or disbelief and consider the subject meaningless.
Atheists: Those who do not believe in God, or — put more strongly — believe there is no God.
Brights: Those who belong to a sociocultural movement promoting a "naturalistic" worldview — based in nature with no supernatural forces.
Deists: Those who believe in the existence of God as creator of the universe but reject all organized religion and supernatural events.
Freethinkers: Those who form opinions about religion on the basis of reason — rather than tradition, authority or established belief.
Humanists/Secular humanists: Those who embrace ethics, compassion, social justice and naturalism and attach primary importance to human matters, rather than the divine or supernatural.
Naturalists: Those who believe the universe is devoid of general purpose and indifferent to human needs or desires.
Theists: Those who believe in the existence of at least one deity who is personal, present and active in the universe.
Pantheists: Those who reject the idea of a person-God but believe that the "holy" manifests itself in all that exists.
Pluralists: Those who accept all religious paths as equally valid.
Rationalists: Those who hold that reason and logic are the only true sources of knowledge.
Skeptics: Those who believe that continuously and vigorously applying methods of science are the only ways to arrive at explanations for natural phenomena.
Searchers: Those who belong to no belief system or worldview but are still open to ideas and actively searching for the truth.
Spiritualists: Those who are spiritual — which is an undefined term but generally refers to people who open to "the sacred" and are interested in personal well-being and development.
Who am I missing?