Definition of shadowiness in US English:

shadowiness

noun

  • See shadowy

    • ‘Here again, the shadowiness of an ‘event’ distinguishes it from a punishable ‘act’ and/or ‘actor.’’
    • ‘This gray shadowiness is mixed sometimes with rain or mist shot by the cinematographer, Pierre Milon, through a greenish or turquoise filter, sometimes with snow that is photographed in deep-blue twilight.’