Antitheism

[Excited Penguin]

I don't oppose the belief in God in itself.
If someone tells me they believe in god I don't have much to oppose that argument with, I don't believe you can prove God exists or doesn't exist.  I can't disprove that I'm God.  
What I oppose is the arguments that usually follow on relating to the belief in God.  Numerology, miracles and so on.
For example I believe in God because the Quran is perfect, numerology, I saw God when I took acid once, The bible is nice and so on.

Actually, you don't know whether you have something to oppose that argument with or not, as prior to getting an unambiguous definition of God you don't know whether it's a falsiable claim or not that is about to be made.

But irregardless of that, as I understand it, being an antitheist describes one who is opposed to the arguments that usually follow on relating to the belief in God, as per your scenario. I'm not trying to slander you, as some have claimed that I am when doing something like this, I am merely explaining to you how I understand the definition of antitheist. If you still don't choose to identify as one even if you accept my definition of the word that I can perfectly understand, but my understanding of language in this regard doesn't allow me to consider you anything but an antitheist, since I don't think that one chooses what one can be described as.
(emphasis added for quoted bit)