változatlan

változatlan is a Hungarian adjective meaning unchanged, unaltered, or invariant. It is commonly used to describe things that do not change under specified conditions or over a period of time, and it appears in everyday language as well as technical discourse.

Etymology: The word is formed from változat ('variant' or 'version') with the negative suffix -lan/-len, yielding meaning 'not changed' or 'unchanged'.

Usage: In linguistics, it can describe forms that do not undergo morphophonemic alternation. In science or data reporting, it may refer to measurements or parameters that remain constant. Common phrases include 'változatlan formában' (in unchanged form) and 'változatlan maradt' (remained unchanged).

Relation: It contrasts with változik (to change) and with változékonyság or változékony (variable). The antonym állandó or állandóság conveys broader constancy, but 'változatlan' emphasizes the lack of change in a specific context.

Notes: In standard Hungarian dictionaries, the term is treated as a neutral descriptive adjective and is suitable for formal and educational writing.