The Collaborative International Dictionary of English v.0.48:

integrated \integrated\ adj.
   1. Formed or united into a whole.

   Syn: incorporate, incorporated, merged, unified.
        [WordNet 1.5]

   2. Formed into a whole or introduced into another entity; as,
      an integrated Europe. Opposite of nonintegrated.
      [Narrower terms: coordinated, interconnected,
      unified; embedded; incorporated; tight-knit,
      tightly knit]

            a more closely integrated economic and political
            system                                --Dwight D.
                                                  Eisenhower
      [WordNet 1.5]

   3. Having different groups treated together as equals in one
      group; as, racially integrated schools. [Narrower terms:
      co-ed, coeducational; desegrated, nonsegregated,
      unsegregated; interracial; mainstreamed] Also See:
      integrative, joint, united. Antonym: segregated.
      [WordNet 1.5 +PJC]

   4. Resembling a living organism in organization or
      development. [Narrower terms: organic (vs. inorganic)]

   Syn: structured.
        [WordNet 1.5]

   5. combined. Opposite of uncombined.
      [WordNet 1.5 +PJC]

   6. having constituent parts mixed to form a single unit.
      Opposite of unmixed. [Narrower terms: blended[2]]

   Syn: amalgamated, intermingled, mixed.
        [WordNet 1.5 +PJC]

The Collaborative International Dictionary of English v.0.48:

Unify \U"ni*fy\, v. t. [imp. & p. p. Unified; p. pr. & vb. n.
   Unifying.] [Uni- + -fy: cf. F. unifier.]
   To cause to be one; to make into a unit; to unite; to view as
   one.
   [1913 Webster]

         A comprehensive or unifying act of the judging faculty.
                                                  --De Quincey.
   [1913 Webster]

         Perception is thus a unifying act.       --Sir W.
                                                  Hamilton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

unified
    adj 1: formed or united into a whole [syn: incorporate,
           incorporated, integrated, merged, unified]
    2: operating as a unit; "a unified utility system"; "a
       coordinated program" [syn: coordinated, co-ordinated,
       interconnected, unified]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "unified":
   coherent, cohesive, composite, impartible, indiscerptible,
   indissoluble, indissolvable, indivisible, infrangible, infusible,
   inseparable, insoluble, integral, integrant, integrated,
   rolled into one, undividable, unitary, united