pertaining to or dealing with morals or the principles of morality; pertaining to right and wrong in conduct.

being in accordance with the rules or standards for right conduct or practice, esp. the standards of a profession

It was not considered ethical for physicians to advertise.

(of drugs) sold only upon medical prescription.

adjective

corrupt , dishonest , immoral , improper , unethical , unjust , unrighteous

adjective

christian , clean , conscientious , correct , decent , elevated , equitable , fair , fitting , good , high-principled , honest , honorable , humane , just , kosher * , moralistic , noble , principled , proper , respectable , right , right-minded , square , straight , true blue , upright , upstanding , virtuous , moral , righteous , rightful , aboveboard , accepted , deontic