ethical in WordNet English dictionary

1. 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 
   
2. of or relating to the philosophical study of ethics
   "ethical codes"; "ethical theories"
   ethical 
   
3. adhering to ethical and moral principles
   "it seems ethical and right"; "followed the only honorable course of action"
   ethical  honorable  honourable