Ethical
Part of speech: noun
Definition: An ethical drug.
Part of speech: adjective
Definition: Of or relating to the study of ethics. Of or relating to the accepted principles of right and wrong, especially those of some organization or profession. Morally approvable; good. Only dispensed on the prescription of a physician.
Unethical
Part of speech: adjective
Definition: Not morally approvable; morally bad; not ethical.