The term "black marketeers" refers to those who engage in the illegal buying and selling of goods and services. The antonyms for this word are law-abiding citizens, legitimate business owners, and lawful traders. Law-abiding citizens follow societal norms, rules, and regulations while conducting their business. Legitimate business owners operate within the bounds of the law, obtaining licenses and paying taxes. Lawful traders engage in legal and transparent trade practices, working in compliance with regulations. These antonyms highlight the importance of adherence to rules and regulations to ensure the safety and stability of economies, societies, and individuals.