Agnosticism

Agnosticism (from the Greek "a," meaning "without," and Gnosticism or "gnosis," meaning knowledge) is the philosophical view that the truth value of certain claims—particularly metaphysical claims regarding theology, afterlife or the existence of God, god(s), deities, or even ultimate reality—is unknown or, depending on the form of agnosticism, inherently unknowable due to the nature of subjective experience.

Agnostics claim either that it is not possible to have absolute or certain knowledge of God or gods; or, alternatively, that while individual certainty may be possible, they personally have no knowledge. Agnosticism in both cases involves some form of skepticism.

Demographic research services normally list agnostics in the same category as atheists and non-religious people, although this can be misleading depending on the number of agnostic theists who identify themselves first as agnostics and second as followers of a particular religion.