1.Definition: adhering to ethical and moral principles

"It seems ethical and right"

Related Adjective(s):honorable, honourable

2.Definition: 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"

3.Definition: of or relating to the philosophical study of ethics

"Ethical codes", "Ethical theories"