Everybody has their favorite definition of the word "Pagan." Most people are convinced that their meaning is the correct one. But no consensus exists, even within a single faith tradition or religion as to the "correct" definition of "Pagan." The same problem happens with the definition of "Christianity," and probably with many other religions. There is general agreement that the word "Pagan" comes from the Latin word "paganus." (meaning "country dweller, rustic"). Unfortunately, there is no consensus on the precise meaning of the word in the fifth century CE and before.
I use the word Pagan, where probably the correct word should be HEATHEN. The implication is anyone that worships FALSE GODS and not the TRUE GOD is a heathen or pagan.
The term has been defined broadly, to encompass all of the religions outside the Abrahamic monotheistic group of Judaism, Christianity, and Islam. The group so defined includes most of the Eastern religions, Native American religions and mythologies, as well as non-Abrahamic ethnic religions in general. More narrow definitions will not include any of the world religions and restrict the term to local or rural currents not organized as civil religions. Characteristic of pagan traditions is the absence of proselytism and the presence of a living mythology which explains religious practice.
The term "pagan" is a Christian adaptation of the "gentile" of Judaism, and as such has an inherent Abrahamic bias, and pejorative connotations among Western monotheists. For this reason, ethnologists avoid the term "paganism," with its uncertain and varied meanings, in referring to traditional or historic faiths, preferring more precise categories such as polytheism, shamanism, pantheism, or animism; however others criticize the use of these terms, claiming that these are only aspects that different faiths may share and do not denote the religions themselves.
In general, God talks against those who follow foreign (or false gods) and not HIS true religion. He even condemns us from ever adopting these practices and "Christianizing" them.. Jer 10:12, "Thus saith the LORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them. For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe." ALSO: God said, "And they rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified against them; and they followed vanity, and became vain, and went after the heathen that were round about them, concerning whom the LORD had charged them, that they should not do like them" (2 Kings 17:15). And here is the clincher!
Deu 12:29 -30 "When the LORD your God destroys the nations and you drive them out and occupy their land, do not be trapped into following their example in worshiping their gods. Do not say, `How do these nations worship their gods? I want to follow their example.'
We are not to take heathen traditions and put the name "Christian" on them! A direct command from God! This include Easter, Christmas, or Sunday!