A generic Google definition of "pagan", as one who holds non-mainstream religious beliefs; or a heathen, ungodly, irreligious, infidel, and or idolatrous.

“It is well documented by fundamentalists (apologists) that the Christmas traditions are Pagan in origin. This simply means that their origin comes from the traditions of the country-folk (pagan). By contrast, the Pagan origins of most of the other attributes of Christianity are vigorously denied. It is also very easy to obscure, overlook and discredit the Egyptian, Mithraic, Germanic, Norse, Celtic, Greek, Hindu and Buddhist roots by lumping all non-Christian religions together and labeling them ‘Pagan’. These are certainly not simple country-folk religions. So to just say Christmas has Pagan roots, and not go further, is glossing over what exactly those roots are, and discrediting their study as worthless. Christmas icons, traditions and stories have hidden meanings. Although not initially apparent, a more thorough investigation reveals far more symbolic content (which is decipherable) than originally suspected. At the roots of this symbolism research is information about the secrets of the mushroom, regarding its habitats, forms, uses, preparations, and effects.”

“The word ‘Pagan’ is almost totally misunderstood today. The deeply pejorative use of the word—entirely due to Christian prejudice and bias for centuries—is illustrated at once by the Concise Oxford Dictionary’s almost brusque: ‘heathen, unenlightened or irreligious (person).’ But, the citation goes on to admit that in its origin the word was totally neutral. It comes from the Latin pagus, a country district. A Pagan, a ‘Paganus’, initially was a peasant. The term was soon to be used by the emerging church authorities to denote all who were not orthodox Christians.”

“Primitive and pagan people attribute some kind of life to all creation. The pre-Socratics concurred with this belief, as Thales’ hylozoism and Pythagoras’ pananimism attest. From this traditional viewpoint, all beings are alive in different ways and various degrees, the more formidable the complexity of its components, the more alive is the system.”

— Paris Arnopoulos (1993), Sociophysics [2]