To be fair, "atheism" is a very specific sect of non-religious people. To not have a word for them would be to lump them together with agnostics, non-affiliated spiritualists, etc.
To be fair for a good amount of human history we didn't have words to utter, so stars got a bit of a head start.
It's a Mii Mario
This is Going Too Far: Twitch Gamer Gets "Swatted"
It's Me! It's You!
Steven Spielberg Criticized for the "Triceratops He Just ...
How People See Gamer Girls
Don't Stare too Long at This Ring Dance, You'll Get Hypnotized
This Les Mis Flash Mob is Probably the Lamest Flash Mob Ever
Make it All Count!
The One Problem With Mario Kart 8
This is Exactly How The Internet Works
Pick Your Site Name
Tell me more