Fuzzy concept

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article possibly contains original synthesis. Source material should verifiably mention and relate to the main topic. Relevant discussion may be found on the talk page. (November 2025) (Learn how and when to remove this message) This article may need to be rewritten to comply with Wikipedia's quality standards. Relevant discussion may be found on the talk page. You can help. The talk page may contain suggestions. (September 2022) (Learn how and when to remove this message) Varying application boundaries A fuzzy concept is an idea of which the boundaries of application can vary considerably according to context or conditions, instead of being fixed once and for all. That means the idea is somewhat vague or imprecise. Yet it is not unclear or meaningless. It has a definite meaning, which can often be made more exact with further elaboration and specification — including a closer definition of the context in which the concept is used. The inverse of a "fuzzy concept" is a "crisp concept" (i.e. a precise concept). Fuzzy concepts are oft