1. A technique, procedure, or way of doing something that is not well-known, difficult to understand, or intentionally concealed
The magician used an obscure method to make the coin disappear.
O mágico usou um método obscuro para fazer a moeda desaparecer.
2. An unclear or unclear approach to solving a problem that lacks transparency
The company's obscure method of calculating costs raised questions from auditors.
O método obscuro da empresa para calcular custos levantou questões dos auditores.