The Collaborative International Dictionary of English v.0.48:

Reconsideration \Re`con*sid`er*a"tion\ (-?"sh?n), n.
   The act of reconsidering, or the state of being reconsidered;
   as, the reconsideration of a vote in a legislative body.
   [1913 Webster]

WordNet (r) 3.0 (2006):

reconsideration
    n 1: a consideration of a topic (as in a meeting) with a view to
         changing an earlier decision
    2: thinking again about a choice previously made; "he had second
       thoughts about his purchase" [syn: reconsideration, second
       thought, afterthought, rethink]

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "reconsideration":
   afterthought, commitment to memory, developed thought,
   exercise of memory, flashback, hindsight, learning by heart,
   looking back, mature thought, memoir, memorization, memorizing,
   re-examination, reappraisal, recall, recalling, recollecting,
   recollection, reflection, remembering, remembrance, reminiscence,
   rethinking, retrospect, retrospection, revaluation, review,
   revision, ripe idea, rote, rote memory, second thought,
   second thoughts, study