The problems have 'retarded' the progress of the program.
mentally 'retarded'
(..) are you calling me again? Freak. Oh. Oh, God. - Christ, who did you call? - No one. I forgot the number. You fuckin' retarded? You went all the way out there in the rain, and you didn't bring the number? No, it was your mother's number. I just ran out of quarters. Why don't we get off of mothers? (..)1997 Good Will Hunting
(..) - Hey, fuck you! Oh, you're a clever one. What's your name? Oh, my God. Looks right. Will, how retarded do you gotta be to get fired from that job? I mean, how hard is it to push a motherfuckin' broom around the room? Mitch, you got fired from pushin' a fuckin' broom. (..)1997 Good Will Hunting