Obivious
Saying something so clear even the dumbest person can't miss it, like you're yelling it in their face with a megaphone.
'You're clearly the worst at this game, bro.', said by someone who's clearly the worst at this game.
'Obivious, the sky is blue.', said by someone who's been blind since birth.
'You're obivious, you're in a room full of people.', said by someone who just walked in and tripped over a chair.