red-flaggy adjective1 •(informal, rare) Exhibiting or characterized by red flags (signs or signals that something is wrong).It's the kind of glow that doesn't feel strange or weird or misguided or red-flaggy. Just a glow. Yes, I'm still nervous as hell, but I know I'm moving in the right direction, no matter what happens. — 2014 formsmore red-flaggy · red-flaggier · most red-flaggy · red-flaggiest