close-minded

The compound adjective 'close-minded' is a relatively modern formation, emerging in the early 20th century by analogy with the older term 'open-minded'. The core metaphor is spatial and architectural: the 'mind' is conceptualized as a room or container. The morpheme 'close', from Latin 'clausus' meaning "shut, enclosed", suggests a mind that is not open to new ideas, effectively sealed off. This contrasts directly with 'open-minded', where the mind is pictured as accessible. The '-ed' suffix transforms the noun phrase into a descriptive adjective, solidifying the concept of possessing a characteristically closed intellect. The term thus logically builds its modern meaning of unreceptive prejudice from the literal image of a shut door.

Structure: close (shut) + mind (intellect) + ed (adjective suffix) - close: From Middle English, meaning "to shut, enclose". Functional role: Modifier describing the state of the 'mind'. - mind: From Old English 'gemynd', meaning "memory, thought, intellect". Functional role: The core noun being described. - ed: A suffix forming adjectives from nouns or other adjectives, indicating possession of a quality. Functional role: Adjectival suffix.