The Collaborative International Dictionary of English v.0.48:

Chastened \Chas"tened\, a.
   Corrected; disciplined; refined; purified; toned down. --Sir.
   W. Scott.
   [1913 Webster]

         Of such a finished chastened purity.     --Tennyson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chasten \Chas"ten\ (ch[=a]"s'n), v. t. [imp. & p. p. Chastened
   (-s'nd); p. pr. & vb. n. Chastening.] [OE. chastien, OF.
   Chastier, F. Ch?tier, fr. L. castigare to punish, chastise;
   castus pure + agere to lead, drive. See Chaste, Act, and
   cf. Castigate, Chastise.]
   1. To correct by punishment; to inflict pain upon the purpose
      of reclaiming; to discipline; as, to chasten a son with a
      rod.
      [1913 Webster]

            For whom the Lord loveth he chasteneth. --Heb. xii.
                                                  6.
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   2. To purify from errors or faults; to refine.
      [1913 Webster]

            They [classics] chasten and enlarge the mind, and
            excite to noble actions.              --Layard.

   Syn: To chastise; punish; correct; discipline; castigate;
        afflict; subdue; purify.

   Usage: To Chasten, Punish, Chastise. To chasten is to
          subject to affliction or trouble, in order to produce
          a general change for the better in life or character.
          To punish is to inflict penalty for violation of law,
          disobedience to authority, or intentional wrongdoing.
          To chastise is to punish a particular offense, as with
          stripes, especially with the hope that suffering or
          disgrace may prevent a repetition of faults.
          [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

26 Moby Thesaurus words for "chastened":
   broken, constrained, controlled, domesticated, dovelike, gentle,
   housebroken, humble, hushed, in control, in hand, lamblike,
   limited, meek, mild, pacific, peaceable, quelled, quiet,
   restrained, softened, stable, subdued, tame, tamed, tempered