The Collaborative International Dictionary of English v.0.48:

Condition \Con*di"tion\, v. i. [imp. & p. p. Conditioned; p.
   pr. & vb. n. Conditioning.]
   1. To make terms; to stipulate.
      [1913 Webster]

            Pay me back my credit,
            And I'll condition with ye.           --Beau. & Fl.
      [1913 Webster]

   2. (Metaph.) To impose upon an object those relations or
      conditions without which knowledge and thought are alleged
      to be impossible.
      [1913 Webster]

            To think of a thing is to condition.  --Sir W.
                                                  Hamilton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Conditioned \Con*di"tioned\, a.
   1. Surrounded; circumstanced; in a certain state or
      condition, as of property or health; as, a well
      conditioned man.
      [1913 Webster]

            The best conditioned and unwearied spirit. --Shak.
      [1913 Webster]

   2. Having, or known under or by, conditions or relations; not
      independent; not absolute.
      [1913 Webster]

            Under these, thought is possible only in the
            conditioned interval.                 --Sir W.
                                                  Hamilton.
      [1913 Webster]

   3. made softer by washing with a chemical agent called a
      conditioner[3].
      [PJC]

WordNet (r) 3.0 (2006):

conditioned
    adj 1: established by conditioning or learning; "a conditioned
           response" [syn: conditioned, learned] [ant: innate,
           unconditioned, unlearned]
    2: physically fit; "exercised daily to keep herself in
       condition" [syn: conditioned, in condition(p)]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "conditioned":
   acclimated, acclimatized, accommodated, accustomed, adapted,
   adjusted, at issue, automatic, blind, bound, bounded,
   case-hardened, compulsive, conditional, confined, contingent,
   copyrighted, cramped, dependent, depending, disciplined,
   experienced, familiarized, finite, forced, hardened, hedged,
   hedged about, impulsive, in question, in suspense, in the balance,
   instinctive, inured, involuntary, leavened, limited, mechanical,
   mitigated, moderated, modified, modulated, narrow, naturalized,
   open, orientated, oriented, patented, pendent, pending, prescribed,
   proscribed, qualified, reflex, reflexive, restricted, run-in,
   seasoned, softened, strait, straitened, suspenseful, tempered,
   trained, unconscious, uncounted, undecided, undetermined,
   unestablished, unfixed, unintentional, unsettled, unthinking,
   untold, unwilled, unwilling, unwitting, up for grabs, used to,
   wont, wonted