excessive pride or self-confidence

अत्यधिक गर्व या आत्मविश्वास

English Usage: His cockiness often led him to underestimate his opponents.

Hindi Usage: उसकी cockiness अक्सर उसे अपने प्रतिद्वंद्वियों को कम आंकने की ओर ले जाती थी।