definition of
ethical

[1] #1 ethical a. of or relating to the philosophical study of ethics; "ethical codes"; "ethical theories". wn

[2] #2 ethical a. 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. wn

[3] #3 ethical s. [honorable, honourable] adhering to ethical and moral principles; "it seems ethical and right"; "followed the only honorable course of action". wn