Part of speech:
A person who forms opinions about religion, politics, morals, etc., independently of or counter to tradition, authority, or established belief
One who lacks belief or faith, especially in a particular religion; a nonbeliever.
The definition of a skeptic is someone inclined to doubt or question rather than just believe matters that are generally accepted.
(Loosely, uncommon) A person who does not believe in a particular deity (any deity in a particular pantheon), notwithstanding that they may believe in another deity.
Alternative capitalization of Heathen (an adherent of the Germanic neo-pagan faith of Heathenry).
The definition of an infidel is a person who you consider a heathen because he does not adhere to the religion you believe is the true religion.
uncertain of all claims to knowledge
Alternative capitalization of Gnostic.
Impossible to prove or demonstrate:
Find another word for agnostic. In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for agnostic, like: freethinker, unbeliever, skeptic, doubter, See syn. study at, atheist, empiricist, heathen, infidel, believer and agnostical.