Xian in Chinese / Japanese...

仙 means immortal (as in a being or person).

In some contexts, it can mean hermit, ascetic, man of the hills, or wizard. The Buddha is often put in this category.

In Chinese mythology and folklore, there is a famous group of eight immortals (八仙).

The 楞嚴經 (Śūraṅgama Sūtra) speaks of many kinds of immortals including walkers on the earth, fliers, wanderers at will (into space or into the deva heavens), beings with the ability to transform themselves into any form, etc.

無限 is the Chinese and Japanese word meaning infinity, unlimited or unbounded.

無限 literally translates as “without limits” or “without [being] bound.”

The first character means “never” or “not,” like the prefix “un-.”

The second means “limited,” “restricted,” or “bound.”

Please note that the Japanese definition leans more toward “infinity” and the Chinese is more about being “boundless” or “without limits.”

In Korean, this means infinity, infinitude, or boundlessness. But in Korean, this term has many interpretations or contexts, so your intended meaning might be vague or ambiguous.

賢 is used to refer to being a wise, trustworthy, and virtuous person. But it also contains the ideas of intelligence, genius, scholarship, virtue, sage, saint, good, and excellent in character.

賢 is used in Chinese, Japanese Kanji, and old Korean Hanja. Also used in a Buddhist context with the same meaning.

Note: Can also be the male given name, Masaru, in Japanese.