Which term describes a person known for high moral standards?

The term that best describes a person known for high moral standards is "rectitude." Rectitude refers to the quality of being morally correct and righteous. A person of rectitude is often viewed as virtuous, adhering steadfastly to ethical principles and demonstrating integrity in their actions and decisions. This term reflects a deep commitment to morality and correctness in both personal and public life, making it an ideal choice to describe someone with high moral standards.

Other options, while interesting in their own context, do not convey the same sense of moral clarity or ethical uprightness. "Prosaic" refers to being dull or lacking in imagination, "reprobate" denotes a person who is morally unprincipled or corrupt, and "pundit" describes an expert or authority in a particular area, often in reference to commentary or analysis, particularly in politics or culture. None of these options encapsulate the essence of moral virtue and high ethical standards as effectively as "rectitude" does.