Which term refers to integrity that is completely confirmed?

The term that refers to integrity that is completely confirmed is "probity." Probity encompasses the idea of having strong moral principles, uprightness, and honesty, with an emphasis on the assurance that such integrity is unwavering and well-established. This term is often used in contexts where ethical behavior and trustworthiness are paramount, making it especially relevant in discussions about professional and personal conduct.

In contrast, the other terms do not convey the same sense of confirmed integrity. "Tortuous" describes something that is winding or complex, often used metaphorically to describe convoluted reasoning or paths. "Solicitous" refers to showing concern or care for someone's well-being, lacking the emphasis on integrity. "Aggrandize" means to increase in power, wealth, or status, often implying an expansion of one's influence rather than a focus on moral integrity. Thus, "probity" is the most fitting term for completely confirmed integrity.