The antonyms for the term "more dirty dealing" are honesty, integrity, fairness, impartiality, probity, rectitude, righteousness, and straightforwardness. These words denote the opposite of the deception, underhandedness, and unethical behavior implied in the original phrase. Honesty refers to being truthful, while integrity indicates the quality of adhering to ethical principles. Fairness and impartiality stand for treating everyone equally and without bias. Probity suggests uprightness and moral correctness, while rectitude conveys moral uprightness and moral soundness. Righteousness involves adhering to ethical standards, and straightforwardness denotes an honest and direct manner of communication. These antonyms can guide us towards a more ethical and responsible way of engaging with others.