unitary in WordNet English dictionary

1. having the indivisible character of a unit
   "a unitary action"; "spoke with one voice"
   one  unitary 
   
2. 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"
   unitary 
   
3. 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"
   unitary 
   
4. relating to or characterized by or aiming toward unity
   "the unitary principles of nationalism"; "a unitary movement in politics"
   unitary