ethical -- (of or relating to the philosophical study of ethics; "ethical codes"; "ethical theories")
ethical -- (conforming to accepted standards of social or professional behavior; "an ethical lawyer"; "ethical medical practice"; "an ethical problem"; "had no ethical objection to drinking"; "Ours is a world of nuclear giants and ethical infants"- Omar N. Bradley)
ethical, honorable, honourable -- (adhering to ethical and moral principles; "it seems ethical and right"; "followed the only honorable course of action")
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