Describes something that cannot be used up, such as resources, energy, or creativity. Often used in compound words like 無尽蔵 (inexhaustible supply).
His ideas are inexhaustible.
A traditional Japanese rotating savings and credit association, often called 無尽講. Members contribute regularly and take turns receiving the pooled funds. This sense is specific to the financial context.
See also: 無尽講
無尽の資源を求めて宇宙開発が進められている。
Space development is being pursued in search of inexhaustible resources.
I participate in the local mutual financing association and pay monthly contributions.
Mutual financing associations are a traditional system of mutual aid.
無尽 shares the same kanji as part of 無尽蔵 and can also mean 'endless', but it more commonly refers to a traditional mutual-financing association, unlike 無尽蔵's meaning of an inexhaustible supply.
From 無 (without) and 尽 (exhaust). The financial sense derives from the idea of an inexhaustible pool of funds shared among members.