Strong atheism
Also known as positive atheism. is the position that God or gods definitely do not exist. A strong atheist doesn’t just lack belief — they affirm the non-existence of any deity. “
“There are no gods, no devils, no angels, no heaven or hell.” - Anne Nicol Gaylor
Weak Atheism
Weak atheism (also called negative atheism). is the position of lacking belief in the existence of any gods, without asserting that gods definitely do not exist. Weak atheists simply do not hold belief in a god rather than positively claiming gods cannot exist. Anthony Flew: “if no such grounds are provided, there exists no sufficient reason for believing in God, and the only reasonable position is to be a negative atheist…”
Agnosticism
Uncertainty or unwillingness to conclude on the existence of God. Thomas Henry Huxley coined the term in 19th century.
Antitheist
Someone who actively opposes religion. “Religion poisons everything.” - Christopher Hitchens, God Is Not Great (2007)
When did anti theism gain popularity and why did it attack religion?
9/11: it attacked religion for:
1. Not thinking: Richard Dawkins says religion teaches people to be happy with not understanding
2. Infantile: Accepting without question
3. Impeding scientific progress: Christopher Hitchens saying religion works against reason (eg evolution).