A person who does not believe in the existence of God or gods. Atheists do not usually have any dislike towards other religions, although some might. Atheists typically believe that there is scientific reasoning behind things that people would usually say are caused by God. Atheists will probably not try to change people's beliefs and are usually very respectful of people's religious views (although some may not be). And whether a person is an atheist or has any other religious status you can think of, it really shouldn't matter-a persons religious views are theirs personally and don't usually affect others, so we should all be accepting of each other's beliefs.
Tina: omg did you hear, Emma is an atheist
Natalie: honestly who cares, her choice not ours
by Nhbhjknnjkkmj April 11, 2015
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One who, on evaluation of all the evidence presented, believes in the nonexistence of deities, God or otherwise. The term implies neither indecision nor the unwillingness to re-evaluate one's stance when presented with new evidence.
Atheists lack faith. Lack of faith is not a faith itself.
by Jennifer93 July 11, 2006
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A being that doesn't believe in any deity or deities.

A.K.A what you were when you were first born.
Me: Hey, do you wanna go to church tomorrow?
You: No thanks, I'm an atheist.
Me: An atheist? What's that?
You: Somebody that doesn't believe in any deities.
by mynameisjonas45@YouTube.com December 13, 2010
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An atheist is anyone who doesn’t believe in a god or gods. There are three kinds of atheists.

1) The people who don’t believe in any religion but still respect religions and followers of a religion because they know it’s important to them and know anyone can believe anything they want.
2) The really depressed idiots who get bad grades in school or lose stuff or starve their pet etc. They don’t want to lose self esteem so they blame all their problems on God and try to convince people that God is like Hitler or something.
3) The incredibly annoying pricks and attention whores and elitestswho spend every second of their free time finding religious people online or in public and doing everything they can to make them feel bad and make themselves look smarter simply because they don’t agree with them.
Christian: *sneezes*
Atheists 1: God bless you.
Christian: Thanks. Did you like the way Church was done last week?
Atheists 1: Well actually I’m an atheist so I didn’t go last week or ever. But I respect your religion and so I just said God bless you because I know that’s what Christians do when they see someone else sneeze. Actually I would like to see what Church is like. You know just to see more of the Christian life. Do you think I could join you this Sunday?
Christian: Sure!

Christian: So how did you do on the test?
Atheist 2: I got an F. Thanks a lot God!
Christian: What? How is that God’s fault? You spent the whole week talking online about how God made you not feed your dog for months when you should’ve been studying!
Atheist 2: Still God’s fault.

Atheist 3: *sneezes*
Christian: God bless you.
Atheist 3: R U FUKIN KIDDING ME YOU FOCKIN RETARD!!? YOU BELEEV IN GOD!!!? HA UR SO FUCKIN STUPID!!! I BET U HAV NO FRENDS BECOZ NO ONE ELSE BELEEVES IN THOSE BIBLE FAIRYTALES!!! SCIENCE IS ALWAZE RITE AND I’M SMARTER THAN U BECOZ I BELEEV IN SCIENCE AND NOT RELIGION!!! GO ATHEISTS!!!
Atheist 1: Hey Christian just so you know he’s not really an atheist, he’s an elitist. There’s a huge difference, believe me.
Atheist 3: FUCK YOU TOO YOU BITCH!!! STOP DISAGREEING WITH ME!!!
Everyone else in the movie theater: SHUT THE FUCK UP ATHEIST 3!
Atheist 3: FUCK YOU ALL!!! YOU’RE ALL RELIGIOUS!!!
by That guy hiding in your closet January 26, 2018
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An atheist is a person who does not believe in any sort of deity. Though this does not neccessarily precipitate smugness, it can often lead to it. Atheists however are impossible to stereotype just as any person of any other faith is impossible to stereotype due to the wide nature of this group.
"Do you go to Church?"
"No I am an atheist."
by Guy February 1, 2005
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1) A person who does not believe in any sort of deity or "God" but accepts that others do.

2) An elitist who like to mock anyone that disagrees with them, particularly christians.

In case 2 what's disturbing is the utter contempt, disrespect, and intolerance (and in some cases, hatred) these people have for anyone that disagrees with them. They refuse to go by the principles of live-and-let-live and do-unto-others. They will counter this assertion by arguing that religious people never live-and-let-live and are always forcing religion onto people. This is of course false, and only applies to a very small minority of religious people (such as the nutjobs at the WBC) and thus is a prime example of smearing people with a vastly over-generalized statement.

Most won't admit it, but they resent the fact that most modern nations allow freedom of religion for all. Ultimately, they would like to see this right taken away someday.
"Christianity is complete and utter bullshit" -- one of the many UD definition of christianity written by atheists
by bubba dawkins February 17, 2010
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one who cannot define logically, scientifically, or pragmatically the existance of a God
An atheist may say, "If there is a God, we would have figured Him out by now. But we haven't, so, logically, there must not be one."
A God-fearing Christian may say, "I may not see, understand, or sometimes find You, but I trust You are there because You promised."

"Little round planet in a big universe, sometimes it looked blessed, sometimes it looks cursed. Depends on what you look at, obviously, but even more it depends on the way that you see." Bruce Cockburn
by TDL February 26, 2007
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