A worshipper of the self or the god of science, often unknowingly religious.
An atheist can speak of moral relativism, but not live it.
by Killing Kittens September 14, 2004
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A person who denies the reality of God (particularly Jesus Christ, despite historical proof of His otherworldly being), and lives life 'free' trusting in science and 'logic'. This despite the fact that may be able to point out when and how the universe was created, but are unable to state WHY. Stephen Hawking himself made this point. Despite so much being unknown about what reality actually is, how it came into being, how colours, morality, love, the fabric of space and time 'happened', they consider themselves smarter than any faith bearing person, and pretty much anyone else they happen across. God loves atheists. Despite what they make think. Ironically, they are usually more militant about their lack of belief than faith bearing people are about their faith.
Stevie the atheist: "There is no God"
John the Faith-nut: "How did the universe happen?"
Stevie- "The big bang you idiot!"
John- "What caused that to happen?"
Stevie- "Pressure...eh...gasses...eh..."
John- "What caused the 'pressure' and 'gasses' to exist?
Stevie- "Eh...eh..."
John- "In fact, what caused existence to exist?"
Stevie-"Eh...eh...Darwin said that..."
John- "Who designed the tongue, instrument of Darwin's speech?"

This goes on for awhile. Atheists have nothing and no faith.

Until they're on their death bed.

by HappyGilmore September 11, 2006
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An under-evolved individual who has not yet developed the ability to understand concepts beyond the three dimensions that his five senses are limited to.

It can also be that he (she) makes a conscious decision to deny the existence of a god in an attempt to quench the feelings of guilt over his (her) behavior. Guilt that would not be present if there were in fact no god.
There is no god. We are all animals. Kill the jew dogs.
by sihth July 18, 2005
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Stupid-ass high school and college students who think they know something about life in the real world.
- Cindy says she's an atheist.
- Oh, yeah? Let's ask lil-miss-know-it-all after she has her first pregnancy scare.

- Billy says he's an atheist.
- Really? Let's see how much of a fucking atheist he is when he's supporting an entire family on his income alone and gets fired.
by Spanks*n*Tickles August 25, 2006
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Someone who believes that when we die, nothing happens.
Atheist: When we die, nothing happens.
Non-Atheist: So we don't go to heaven?
Atheist: No.
by jonnyg1 October 20, 2006
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Someone that believes that there is no god. Some are more tolerant than others some are more fanatical than others, just like in every other group in the world.

PS: To the Christians, we tend to comment on you the most because you tend to attack the most. I have yet to run into a Buddhist monk ranting about how I'm going to suffer for all eternity for not being Buddhist.
Someone less tolerant of others: Haha. You're religious?! Stupid f*cking loser.

Someone more tolerant of others: Oh, I see. You're religious. I'm atheist.
by Atchan September 18, 2005
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A person with no invisible means of support.
Atheist: I do not accept the existence of a deity or of divine beings that I cannot perceive.

Just as a person with belief appears to have no visible means of support. Belief is supported by faith in historical evidence in the Biblical testaments, Josephus, Philo, and other noted historians.
by Chris W. Coldren January 21, 2007
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