bright as day

Related

sunlit · glaring · luminous · dazzling · noon · sunshine · blinding · plain · evident · crystal · stark · unmistakable · gleaming · daylight · transparent · manifest · spotlight · fluorescent

Opposites
luminosity/visibility

bright as daymurky

Dark and unclear

shadowy · unlit · dim · gloomy · lightless

clarity/obviousness (figurative)

bright as daymurky

Dark and unclear

obscure · opaque · unclear · confusing · ambiguous

Familiarity
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