<p>Forgive me if I'm wrong (which some of you are deff. saying) but I'm pretty sure atheist is defined actively disbelieving in the existance of a God or Gods.</p>
<p>Agnostism, meaning "no knowledge" in Latin, is when people claim they don't know. There are agnostics who lean more to "there prob isn't one" while others lean towards "there might be one." What some of you seem to be defining as "atheism" is a actually a form of agnosticism.</p>
<p><a href="http://www.reference.com/search?r=13&q=Athiesm%5B/url%5D">http://www.reference.com/search?r=13&q=Athiesm</a>
Atheism, as a philosophical view, is the position that either affirms the nonexistence of gods or rejects theism. When defined more broadly, atheism is the absence of belief in deities, alternatively called nontheism. Although atheists are commonly assumed to be irreligious, some religions, such as Buddhism, have been characterized as atheistic because of their lack of belief in a personal god.</p>
<p><a href="http://www.reference.com/search?r=13&q=Agnosticism%5B/url%5D">http://www.reference.com/search?r=13&q=Agnosticism</a>
agnosticism, form of skepticism that holds that the existence of God cannot be logically proved or disproved. Among prominent agnostics have been Auguste Comte, Herbert Spencer, and T. H. Huxley (who coined the word agnostic in 1869). Immanuel Kant was an agnostic who argued that belief in divinity can rest only on faith. Agnosticism is not to be confused with atheism, which asserts that there is no God.</p>
<p>A theist believes in a God(Gods), an athiest does not, an agnostic leaves it for debate seeing that they believe there really isn't any way of knowing.</p>