bad idea

• mistakeWrong action or decision
• foolishLacking good sense
• regretSorrow over past actions
• riskyInvolving possible harm
• recklessCarelessly ignoring danger

blunder · disaster · warning · stupid · terrible · dangerous · doomed · backfire · fiasco · train wreck · red flag · hold my beer · second thoughts · hindsight · cautionary · ill-advised · shortsighted · hasty

• ratingsA rating, rating, one star, five stars, rating scale