Black-marketing refers to the illegal sale of goods or services in the black market. The practice of black-marketing is highly unethical and negatively impacts the economy. However, there are several antonyms for black-marketing, including ethical business practices, fair trade, legal sales, and transparent transactions. Ethical business practices promote fair and transparent sales, which is essential for economic growth and consumer confidence. Fair trade promotes equality and establishes fair prices for goods and services, keeping away from black-marketing practices. Legal sales refer to the selling of goods and services that are legally authorized by the government. Transparent transactions help in building trust and reliability in business. Therefore, it is crucial to promote these antonyms of black-marketing to ensure a sustainable, ethical, and thriving economy.