Theism is the belief in God. There are two main types: monotheism, which is the belief in one God, and polytheism, which is the belief is many gods. Christianity, Judaism, and Islam are all examples...
Nontheism the rejection of the belief in god or gods, atheism is the absence of belief in god or gods; you might argue that there is no difference and the terms are often used interchangeably,...
Dualistic: consisting of two. Theism:belief in the existence of a God or Gods. Dualistic Theism can therefore be taken to mean the belief in the existence of two Gods; religion of two parts.
For me, personally, a general lack of religion is right. I'm technically agnostic due to my open-mindedness to the notion of a Higher Power, but whether it is absolutely real remains to be seen. Even...