kupariseen
Kupariseen is a Finnish adjective form derived from kuparinen, meaning coppery or copper-colored, or of copper. The base kuparinen is formed from kupari 'copper' plus the adjectival suffix -inen, yielding the sense of being copper-colored or copper-related.
Kupariseen is an inflected form used when the adjective modifies a noun in certain grammatical cases, typically
Notes: The word kuparinen is built from kupari, the term for the metal copper, with the suffix