[1] : The Collaborative International Dictionary of English v.0.48

reticent \ret"icent\, a. l. reticens, p. pr. of reticere to
   keep silence; re- + tacere to be silent. see tacit.
   inclined to keep silent; reserved; uncommunicative.
   1913 webster
see also:
tacit 

[2] : WordNet (r) 2.0

reticent
     adj 1: temperamentally disinclined to talk syn: untalkative
     2: cool and formal in manner syn: reserved, restrained, unemotional
     3: reluctant to draw attention to yourself syn: self-effacing
see also:
untalkative reserved restrained unemotional self-effacing 

[3] : Moby Thesaurus II by Grady Ward, 1.0

55 moby thesaurus words for "reticent":
   olympian, aloof, backward, bashful, blank, chilled, chilly, close,
   close-lipped, close-tongued, closemouthed, cold, constrained, cool,
   detached, discreet, distant, expressionless, forbidding, frigid,
   frosty, guarded, icy, impassive, impersonal, inaccessible,
   introverted, modest, offish, quiet, remote, removed, repressed,
   reserved, restrained, retiring, shrinking, shy, silent, standoff,
   standoffish, subdued, suppressed, taciturn, tight-lipped, timid,
   unaffable, unapproachable, uncommunicative, uncongenial,
   undemonstrative, unexpansive, ungenial, unresponsive, withdrawn

Reticent >> R Words
Reticent, definition of term: Reticent
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