The Collaborative International Dictionary of English v.0.48:

Retired \Re*tired"\, a.
   1. Private; secluded; quiet; as, a retired life; a person of
      retired habits.
      [1913 Webster]

            A retired part of the peninsula.      --Hawthorne.
      [1913 Webster]

   2. Withdrawn from active duty or business; as, a retired
      officer; a retired physician.
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   Retired flank (Fort.), a flank bent inward toward the rear
      of the work.

   Retired list (Mil. & Naval), a list of officers, who, by
      reason of advanced age or other disability, are relieved
      from active service, but still receive a specified amount
      of pay from the government.
      [1913 Webster] -- Re*tired"ly, adv. -- Re*tired"ness,
      n.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Retire \Re*tire"\, v. t. [imp. & p. p. Retired; p. pr. & vb.
   n. Retiring.] [F. retirer; pref. re- re- + tirer to draw.
   See Tirade.]
   1. To withdraw; to take away; -- sometimes used reflexively.
      [1913 Webster]

            He . . . retired himself, his wife, and children
            into a forest.                        --Sir P.
                                                  Sidney.
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            As when the sun is present all the year,
            And never doth retire his golden ray. --Sir J.
                                                  Davies.
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   2. To withdraw from circulation, or from the market; to take
      up and pay; as, to retire bonds; to retire a note.
      [1913 Webster]

   3. To cause to retire; specifically, to designate as no
      longer qualified for active service; to place on the
      retired list; as, to retire a military or naval officer.
      [1913 Webster]

WordNet (r) 3.0 (2006):

retired
    adj 1: no longer active in your work or profession

Moby Thesaurus II by Grady Ward, 1.0:

75 Moby Thesaurus words for "retired":
   abandoned, abjured, anonymous, antiquated, antique, apart, archaic,
   closet, deserted, detached, devious, discontinued, disused,
   done with, emeritus, free, idle, in a backwater, in retirement,
   incognito, inmost, innermost, insular, interior, intimate, inward,
   isolated, leisure, leisured, lonesome, not worth saving,
   obsolescent, obsolete, old, old-fashioned, on pension,
   on the shelf, open, out, out of use, out-of-date, out-of-the-way,
   out-of-the-world, outdated, outmoded, outworn, past use, pensioned,
   pensioned off, personal, private, privy, quarantined, relinquished,
   remote, removed, renounced, resigned, secluded, secret, segregated,
   semiretired, separate, separated, sequestered, shut off, spare,
   superannuate, superannuated, superseded, unfrequented, unoccupied,
   unvisited, withdrawn, worn-out