nekompatibilní

Nekompatibilní is a Czech adjective meaning not compatible, used to describe objects, systems, or concepts that cannot function together or coexist without conflict. It is formed by the prefix ne- attached to kompatibilní; kompatibilní itself derives from Latin compatibilis, via Czech development. The term is widely used in technology, science, and everyday discourse to signal a lack of interoperability.

In technology and engineering, nekompatibilní describes hardware or software that cannot operate correctly with another component, version, or standard without modification. Examples include hardware designed for a different bus or architecture, or software that cannot run on an unsupported operating system or cannot read a given file format. In biology and medicine, immunological or genetic incompatibility is described with nekompatibilní, for example in organ transplantation where donor and recipient tissues are not immunologically compatible. In data and information systems, data formats, protocols, or APIs may be nekompatibilní, requiring adapters or conversion.

Grammatically, nekompatibilní behaves as a typical Czech adjective and uses the preposition s to indicate what it is incompatible with, as in nekompatibilní s čím; it agrees with the noun it modifies in gender, number, and case.

Related terms include kompatibilita (compatibility) and nekompatibilita (incompatibility). The word forms a common part of discussions about interoperability, standards, and system design in Czech.