Definition of pettishness in US English:

pettishness

noun

  • See pettish

    • ‘Emily Brontë is unusual in daring to show, in Linton Heathcliff, a young invalid's tyranny, and a far from graceful decline from pettishness to moroseness.’
    • ‘It is their incorrigible pettishness and ignominious attitude towards their voters that makes the whole nation suffer.’

Pronunciation

pettishness

/ˈpɛdɪʃnəs//ˈpediSHnəs/