1. excessive confidence or boldness; audacity or nerve, especially when inappropriate or reckless
She had the temerity to question the CEO's decision in front of the entire board.
Ela teve a temeridade de questionar a decisão do CEO em frente a todo o conselho.
2. reckless disregard for danger or consequences
It took great temerity to sail those dangerous waters without proper equipment.
Levou grande temeridade navegar nessas águas perigosas sem equipamento adequado.