1. A method, procedure, or process that is kept secret and not revealed to the public or competitors
The company uses an undisclosed technique to manufacture their products at a lower cost.
A empresa usa uma técnica não divulgada para fabricar seus produtos com custo menor.
2. A proprietary or confidential method whose details are withheld from public knowledge
The magician refused to reveal the undisclosed technique behind his illusions.
O mágico recusou-se a revelar a técnica não divulgada por trás de suas ilusões.