First, what are you considering to be the "true religion?" Second, stating that a religion is oppositie a "true religion," could insinuate that the "true" is somehow superior to the other. Because of these two points, particularly the first, I don't think your question can be answered.
murder, greed, envy?
The opposite could be true, or real, genuine.
No true is the opposite to false and Faithful is opposite to unfaithful or disloyal
The opposite of true (factual) is false. It might also be unreal or fictional. The opposite of true (direction) could be skewed or angled. The opposite of true (loyal, steadfast) could be disloyal, unfaithful, or fickle.
Yes, it is always true. If it was "opposite day", the actual meaning would be taken as 'it is opposite day'. If it was not opposite day, the sentence would be taken as read and would be correct. On Opposite Day : "It is not opposite day" = "It is opposite day" = True On Any Other Day: "It is not opposite day" = "It is not opposite day" = True If you said it WAS Opposite Day, it won't always be true.
Any religion that resorts to SPAMMING is not a true religion.
The population of True Religion is 809.
The Opposite Is Also True was created in 2001.
Everyone you ask that is religious will tell you that there religion is the true religion. Jehovah's Witnesses believe that are the only true religion.
True Religion was created in 2002-12.
As true as any religion is....
Atheism.