There are two kinds of atheism: strong (positive) atheism and weak (negative) atheism. The difference between these two is basically that a weak atheist doesn't believe in God, while a strong atheist believes in no God.

Weak atheism is essentially the same as agnosticism]. It states that since we have no proof of a God, we cannot know for sure that one exists. Strong atheism states that since we live in a scientific world where the existence of things is determined solely by their observability, we cannot assume anything unobservable to exist. God isn’t observable, therefore he doesn’t exist (cf. Occam’s Razor). This doesn't mean that an atheist wouldn't WANT to believe in God, it merely means that he has no REASON to believe in it/him.

Strong atheists often question the special treatment weak atheists – and theists – give to religion. If they believe that the tooth fairy or Santa Claus do not exist, why are they willing to give God a benefit of the doubt?

Strong atheism is often equated with religion since it takes a strong stance on the issue. This is, however, fallacious. Religion is not based on rationality, and strong atheists value rationality over fantasy. Therefore atheism is not parallel with religion.
I do not follow atheism. I merely concur with it.
by Servant Of Progress October 21, 2004
The belief that there was nothing and then nothing happened to nothing and then nothing magically exploded for no reason, creating everything and then a bunch of everything magically rearranged itself for no reason what-so-ever into self-replicating particles that then turned into dinosaurs. Makes perfect sense.
what's your religion?
I don't have one.
So It's Atheism?
by LoveVeil December 09, 2015
The belief that your belief sucks
Christianity is stupid because they believe in god, atheism doesn't involve that so atheists agree that Christianity is stupid
by Psychoiguana December 17, 2013
The belief that everything in the universe, all we see and all we have yet to see is the creation (by-product) of random acts of coincidence with foundations solely in pure science and rationale mixed with generous doses of cause and effect and trial and error.

True atheists do not believe in any form of God, or God related creation, including any form of morale standard that would indicate the existence of right versus wrong. Although atheists may one day be able to explain all matters and conditions of the universe, they will never be able to rationalize questions like: Why is there a universe? Why does it go on as it does? or Has it any meaning? (see C.S. Lewis, Mere Christianity)

True atheists also agree that belief in pure science and a belief in God cannot be reconciled. Although many of history's greatest scientists (Einstein), inventors (Benjamin Franklin) and mathematicians (Blaise Pascal) were believers in God. See example below.
Einstein is probably the best known and most highly revered scientist of the twentieth century, and is associated with major revolutions in our thinking about time, gravity, and the conversion of matter to energy (E=mc2). Although never coming to belief in a personal God, he recognized the impossibility of a non-created universe. The Encyclopedia Britannica says of him: "Firmly denying atheism, Einstein expressed a belief in "Spinoza's God who reveals himself in the harmony of what exists." This actually motivated his interest in science, as he once remarked to a young physicist: "I want to know how God created this world, I am not interested in this or that phenomenon, in the spectrum of this or that element. I want to know His thoughts, the rest are details." Einstein's famous epithet on the "uncertainty principle" was "God does not play dice" - and to him this was a real statement about a God in whom he believed. A famous saying of his was "Science without religion is lame, religion without science is blind."
by PSBWTHU December 14, 2009
Opposite of religion. The idea that there is no God or deity of any sort. The idea that this world is it. Basically, that's it.

Atheists can be nice and considerate. But there are some who roam around (especially on the internet) that mock and ridicule theists, as if that's doing any good at all.
Jenna is an atheist. She believes in no God.

There are some people online who call themselves {Atheists] while ridiculing people online for no good reason. However, there are Atheists who aren't like that.

I wouldn't be surprised if the term Atheism didn't pass, judging by this website.
by Potatoe Joe July 28, 2015
The belief that there was nothing, and nothing happened to nothing and nothing then magically exploded into everything for no reason, then bits of everything reformed into self-replicating bits for no reason, which then turned into dinsaurs.
You think religion is crazy? Just look at atheism sometime!
by The Whacko November 02, 2014
The belief that there was nothing, and nothing happened to nothing and then nothing magically exploded for no reason, creating everything, and then a bunch of everything magically rearranged itself for no reason whatsoever into self-replicating bits which then turned into dinosaurs.
Unless you are an expert in religion, atheism makes no sense.
by Ser Anneliese May 20, 2012
A religion based off a dot exploding and after the earth formed it rained on a rock for billions of years making a organism.Atheist usually say that it is not a religion, but if you think about they blindly follow a bunch of scientist and say whatever they say is true. They also like to use the term "you are unreleasable" as an excuse to stop talking to you when they are in a debate, but they are the ones being unreasonable as they will literally not talk to you because of your beliefs.
Random guy: I believe in Atheism .Random guy 2: I'm Cristian.(after long debate) Random guy: How can i talk to you when you are being so unreasonable?Random guy 2: I'm the unreasonable one?
by xboxjunkie February 24, 2015

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