Definition of monstrousness in US English:

monstrousness

noun

  • See monstrous

    • ‘Then all too rapidly, the horror and monstrousness began to sink in.’
    • ‘Did the war make him monstrous, or was the war a product of his monstrousness?’
    • ‘The word homicide is wholly inadequate to convey the monstrousness of such a culture.’
    • ‘The Nazi crimes, it seems to me, explode the limits of the law; and that is precisely what constitutes their monstrousness.’
    • ‘Probably they have become numb to the monstrousness of their actions.’