[adjective] UK - of a system of local government in the UK in which official power is given to one organization which deals with all matters in a local area instead of to several organizations which deal with only a fewWales will be divided into 21 unitary authorities instead of eight counties and 37 districts.
UNITARY
Meaning of UNITARY in English
Cambridge English vocab. Кембриджский английский словарь. 2012