Definition of brattishness in English:

brattishness

noun

derogatory, humorous
  • See brat

    • ‘All too often, John serves up a kind of tantrummy brattishness, laced with a considerable dollop of self-pity.’
    • ‘Though she initially irritates with her little girl brattishness, hers is a performance that soon grows on you.’
    • ‘All those years of brattishness are finally showing up on your face.’
    • ‘He works miracles, some of which foreshadow those of his mature years, but are sometimes marked by brattishness and childish amorality.’
    • ‘She is especially vigilant for the first signs of the brattishness that sometimes afflicts children.’