1. A response or reply that has never been given, seen, or done before; a novel or groundbreaking answer to a question or problem
The scientist provided an unprecedented answer to the century-old mystery.
O cientista forneceu uma resposta sem precedentes para o mistério secular.
2. An unusually significant or remarkable response that sets a new standard
The CEO's unprecedented answer to the crisis surprised the entire industry.
A resposta sem precedentes do CEO à crise surpreendeu toda a indústria.