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50.
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 20, 2007
 
51.
1) Someone who does not believe in a god or any gods.

2) Someone who thinks they're better than those who are religious.
1) Religious person: I'm Christian.

Good Atheist: That's cool, I'm athiest.

2) Religious person: I'm Christian.

Bad Athiest: OMGZ!!! All Christians are such hypocrites!! they discriminate and generalize and think they're better than everyone else! I hate all the stupid Christians!

Religious person: Hey, dumbass, do you realize you just did the exact thing you just accused Christians of doing? You're the fucking hypocrite here, not us.

Bad Atheist: Uh... er... um... stop being smarter than me!
by That Other Girl July 28, 2005
 
52.
a person who loves life not because a book told them too but because it is all that we have.someone who is in awe of the majesty of the universe but will not use an easy crutch like religion to explain the inexplicable.
a moral person who holds logic and truth as their guides.
love, respect and peace are not the preserve of the religous.
by be excellent to each other August 29, 2003
 
53.
One who does not personally believe in a deity or God. Though some do fully deny the possibility of a God, many simply do not believe in one personally, and accept that others do. A group that faces a lot of discrimination, perhaps the most after Jews.
Atheist: Hello, I am an Atheist.

Tolerant Christian: Sup dude.

Intolerant Christian: Demon! Filth! Urchin! You're in denial of the omnipresent, wonderful God!

Tolerant Christian: Dude, please shut up, you're giving us a bad na-

Intolerant Christian: THEY'RE THE REASON THE WORLD SUCKS! THEY HAVE NO MORALS! GOOD THING I'M GOING TO HEAVEN AND FUCKERS LIKE THAT ARE GOING TO HELL!

Atheist: Actually, I do have morals, I believe killing is wrong, and-

Intolerant Christian: OF COURSE KILLING IS WRONG, IT'S IN THE 10 COMMANDMENTS!

Atheist: I don't follow the Bible though, because I actually
believe killing is wrong myself, I don't need to be ordered to by a "deity".

Intolerant Christian: THAT'S IT, I'M BRINGING MY FRIENDS OVER TO LYNCH YOU, MOTHERFUCKER!

Tolerant Christian: ...I hate myself.
by MrCuddles November 26, 2006
 
54.
One who believes there are no gods in existence.
An atheist hasn't beliefs that conflict with a Christian or Muslim.
by CatWithTheGatt March 19, 2003
 
55.
A person that does not believe in Satan, God, or any other religious figures or beliefs.

Some atheists are bugged by religious people.

Other atheists are cool with the fact that other people have different beliefs.

Many people criticize atheists for celebrating Christmas, which I think is complete and utter bullshit. Christmas, although a religious holiday, has other meanings behind it. It's a time to spend with loved ones as well. So atheists have that right to celebrate Christmas.
Heather: Hey, do you go to church?
Alison: No, I'm an atheist.

Heather: Why are you celebrating Christmas? You're an atheist...
Alison: Get off my ass, Heather.
by hey-its-megan December 14, 2012
 
56.
Theist: Someone who knows god personally.

Atheist: Someone who can prove that god doesn't exist.

Agnostic: Someone who believes that god in unknown at this time.
"I thought I was an atheist but I'm really an agnostic"
by cloud195 May 17, 2013