"ethical" in the adjective sense
1. ethical
of or relating to the philosophical study of ethics
"ethical codes"
"ethical theories"
2. ethical
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
3. ethical, honorable, honourable
adhering to ethical and moral principles
"it seems ethical and right"
"followed the only honorable course of action"
Source: WordNet® (An amazing lexical database of English)
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