adj. - Something stupefying, generally used in a positive fashion. Used to denote a level of something so enormous, it's ridiculous almost to the point of being stupid.
Also used as an adv., it is less ubiquitously positive when found in this form.
You check that cat on the sax? He's so good it's stupidacious!
studious judious is a blonde haired bozo that looks like a light bulb. Studious Judious’s love to read books and bitch like an old grandma. Studious Judious is a nerd at heart and gets no girls