There are religions (including Buddhism and Taoism), in fact, that classify some of their followers as agnostic, atheistic, or nontheistic. The true opposite of "religious" is the word "irreligious". Irreligion describes an absence of any religion; antireligion describes an active opposition or aversion toward religions in general.

Look what I found creeky lol

No wonder religion is a mish mash ,no one actually seems to know the true meaning of even the word let alone why all the millions of alternate practice came about .

One link said prophets with charisma made the difference between long term religions and short term ones ,and I got this bit...;; an abundance of prophets appeared at an age when the civilized societies were at a loss to why evrything kept going wrong and needed some imput for thier own stability.   hmmm  thats a beginning is it not ?