An unduly idealistic, optimistic, sentimental, or wistful perspective on or about something. Primarily heard in UK. I know Sarah looks on our childhood with rose-coloured spectacles, but I can't put aside how difficult my parents' failing marriage was for all of us.Despite doing worse every quarter for the last two years, our boss keeps seeing the business through rose-coloured spectacles.You need to take off your rose-coloured spectacles for a moment and realise that there are serious problems in the world that need fixing.