The word 无关 is formed by directly combining two conceptual building blocks: 无, which conveys the fundamental idea of "not having" or "absence", and 关, which carries the core meaning of a "gateway", "joint", or "pivotal point of connection". When fused, their inherent meanings create a new, compound concept where the notion of "connection" (关) is fundamentally negated or stated to be absent (无), thus forming the essential idea of "having no connection to" or "being unrelated".