A person who does not believe in a supreme being. Most of these may be classified under the following definitions:

1) Aggressive atheist: attacks other religions and is often intolerant to the follower of other religions. Often brings up the insensitive fact that faith is the "complete acceptance of a God without proof," somewhat equatable to ignorance, which, among other things, is the "complete acceptance of an idea without proof."

2) Passive/Tolerant atheist: does not believe in a supreme being but accepts that others do. Does not usually bring up the above fact unless attacked for being an atheist.

Not to be confused with taoism or confucianism, which are philosphies and do not mention gods or the afterlife. Atheism is a state of nonbelief. One can be a Taoist Atheist, which would be a person who seeks to understand and learn from nature and does not believe in a god.

Someone who doesn't believe in any gods, or strongly believes that there is no such thing as a divine being or god.

a person who rejects religons hypocrisy.
a triumph of logic over fear.

Not a greedy know-it-all teenager, who pretends to hate religion but celebrates Christmas, as posted by anonymous, rather someone who does not believe in god. This person may or may not celebrate the overly-commercial holiday of Christmas which no longer has a basis in religion.

a person with no faith in any diety who do not need to disprove god because there is no proof in the first place

A person who thinks logically, rather than basing their beliefs on a self-contradicting document which is not just unproven, but is actually disproven by science.

There are two in-use definitions of the word 'atheist':

1.) A person who lacks belief in a god or gods. People who use this definition categorize atheists as either negative (or implicit or weak) atheists or positive (or explicit or strong) atheists. Negative atheists, while they don't believe in a god, do not positively assert that no gods exist. Positive atheists, however, do.

2.) A person who believes that no god or gods exist.

Those who consider themselves atheists (who are usually positive atheists) tend to define 'atheist' using the former definition, and those who believe in a god or gods tend to define 'atheist' using the latter. In both cases, this seems to be a demagogic practice intended to classify either as many or as few people as atheists as possible. Negative atheists are usually referred to as agnostics.

While neither definition of atheism entails any personality traits of atheists or of those who do believe in a god or gods (sometimes referred to as 'theists'), both atheists and theists tend to believe that certain traits apply to all atheists/theists. Common myths about atheists include: all atheists are arrogant, immoral, rebellious, and/or intolerant; all atheists really believe in (the Christian) God and are simply in de...