unitary

relating to or characterized by or aiming toward unity; "the unitary principles of nationalism"; "a unitary movement in politics"

of or pertaining to or involving the use of units; "a unitary method was applied"; "established a unitary distance on which to base subsequent calculations"

characterized by or constituting a form of government in which power is held by one central authority; "a unitary as opposed to a federal form of government"

having the indivisible character of a unit; "a unitary action"; "spoke with one voice"