A "shadowy world" refers to a mysterious or hidden realm that is not easily understood or seen by most people. It often implies secrecy or unknown activities taking place in that world. Full definition
This wicked political drama penetrates modern Washington D.C.'s shadowy world of greed, sex, and corruption. (thehollywoodnews.com)
Little Nightmares takes players to a dark and shadowy world with gruesome creatures and is available now on Xbox One, Playstation 4 and PC via Steam. (flickeringmyth.com)
Cinematographer Sean Bobbitt («Shame») emphasizes the sharp redness of blood in an otherwise shadowy world often tinted by yellows and greys, while Javier Navarrete's downbeat orchestral score roots the story in the baroque traditions of the period from which the two lead characters hail. (indiewire.com)