The terms "eudaemonistic" and "eudaemonistical" are related to the concept of "eudaimonia," which comes from Greek philosophy and translates to "human flourishing" or "a state of being well and doing well." Both adjectives describe approaches or philosophies centered around achieving happiness and well-being through virtuous living and the pursuit of one's highest good.

"Eudaemonistic" refers to anything that promotes or is characterized by the pursuit of eudaimonia. This term often describes ethical theories or practices that emphasize achieving well-being and fulfillment through living virtuously. For instance, a eudaemonistic approach to ethics would focus on how moral behavior contributes to overall happiness and personal flourishing.

"Eudaemonistical" is a variant of the same concept, though it is less commonly used. It also pertains to philosophies or approaches that aim at achieving happiness and well-being through virtuous conduct. Both terms highlight the importance of living in accordance with one’s values and pursuing a life that leads to genuine satisfaction and flourishing.

Overall, both "eudaemonistic" and "eudaemonistical" emphasize the role of virtue and moral excellence in achieving a fulfilling and happy life. They reflect a philosophical focus on human well-being and the pursuit of the highest good through ethical behavior and personal development.