Of, from or native to Poland, or relating to the Polish language.
A breed of chickens with a large crest of feathers.
The language spoken in Poland.
Of a person: having obtained worldly experience, and lacking naiveté; cosmopolitan, worldly-wise.
Complicated, especially of complex technology.
Of art or other things: appealing to the tastes of an intellectual or sophisticated (sense 1) person; cerebral; also, cultured, elegant, refined.