RE:RE:RE:RE:RE:RE:RE:Isn't it about time MrHulot Starts Posting You are wrong, stupid, stupider, more stupid or stupidest. Take your pick.
But the major dictionaries would disagree; stupider is commonly cited as the correct comparative form of the adjective stupid. Stupider is grammatically correct, it is a real word, and it’s been in use for at least the last two hundred years.
https://www.grammarly.com/blog/is-stupider-a-word/