Whats unitary system?

an economic system in which production and prices are determined by unrestricted competition between privately owned businesses.
l.
of or relating to a form of government in which only a single political party constitutes the government
m.
a system of political organization in which most or all of the governing power resides in a centralized government, in contrast to a federal state

A unitary system is a system of political organization in which the governing power is concentrated in a centralized government, with little to no power being devolved to regional or local governments. In a unitary system, the central government holds authority over all areas of governance, including legislation, administration, and decision-making. This is in contrast to a federal state, where power is divided between the central government and regional or local governments.