broad daylight /bɹɔːd ˈdeɪlaɪt/ noun2 •Abundant natural illumination in daytime, producing clear visibility; hence, daytime.Broad daylight illumined the apartment, for the sun was high in heaven, though obscured by rolling masses of autumnal vapour. — 1848 •(figurative) Chiefly preceded by in: the full view of observers during the day.The bank robbery took place in broad daylight.