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:

Integrate \In"te*grate\, v. t. [imp. & p. p. Integrated; p.
   pr. & vb. n. Integrating.] [L. integratus, p. p. of
   integrare to make whole, renew: cf. F. int['e]grer. See
   Integer, Entire.]
   [1913 Webster]
   1. To form into one whole; to make entire; to complete; to
      renew; to restore; to perfect. "That conquest rounded and
      integrated the glorious empire." --De Quincey.
      [1913 Webster]

            Two distinct substances, the soul and body, go to
            compound and integrate the man.       --South.
      [1913 Webster]

   2. To indicate the whole of; to give the sum or total of; as,
      an integrating anemometer, one that indicates or registers
      the entire action of the wind in a given time.
      [1913 Webster]

   3. (Math.) To subject to the operation of integration; to
      find the integral of.
      [1913 Webster]

WordNet (r) 3.0 (2006):

integrated
    adj 1: formed or united into a whole [syn: incorporate,
           incorporated, integrated, merged, unified]
    2: formed into a whole or introduced into another entity; "a
       more closely integrated economic and political system"-
       Dwight D.Eisenhower; "an integrated Europe" [ant:
       nonintegrated, unintegrated]
    3: not segregated; designated as available to all races or
       groups; "integrated schools" [ant: segregated,
       unintegrated]
    4: resembling a living organism in organization or development;
       "society as an integrated whole" [syn: integrated,
       structured]

Moby Thesaurus II by Grady Ward, 1.0:

71 Moby Thesaurus words for "integrated":
   aggregate, all, all-embracing, all-inclusive, allied, amalgamated,
   assembled, assimilated, associated, banded together, blended,
   bound, bracketed, collected, combinative, combinatory, combined,
   composite, comprehensive, conjoined, conjoint, conjugate,
   conjunctive, connected, connective, consolidated, copulate,
   coupled, eclectic, entire, exhaustive, fused, gathered, gross,
   hand-in-glove, hand-in-hand, holistic, inclusive, incorporated,
   integral, integrant, intimate, joined, joint, knotted, leagued,
   linked, matched, mated, merged, mixed, omnibus, one,
   one and indivisible, paired, rolled into one, spliced,
   syncretistic, syncretized, synthesized, tied, total, undivided,
   unified, unitary, united, universal, unseparated, wedded, whole,
   yoked