mieszanymi
Mieszanymi is the instrumental plural form of the Polish adjective mieszany, meaning “mixed” or “hybrid.” It is used to describe plural nouns in the instrumental case, typically in expressions that denote means, methods, groups, or materials. Examples include z mieszanymi metodami (with mixed methods), mieszanymi grupami (with mixed groups), and mieszanymi materiałami (with mixed materials).
In terms of grammar, mieszanymi follows the standard Polish pattern for instrumental plural adjectives. Polish adjectives
Usage notes emphasize that mieszanymi does not carry a separate lexical meaning beyond “mixed” and functions
Etymology and related forms: mieszany derives from the verb mieszać (to mix) and the noun mieszanka (mixture).