secretiveness

from WordNet (r) 3.0 (2006)

secretiveness
    n 1: characterized by a lack of openness (especially about one's
         actions or purposes) [syn: {closeness}, {secretiveness}]
         [ant: {nakedness}, {openness}]
    2: the trait of keeping things secret [syn: {secrecy},
       {secretiveness}, {silence}]

from The Collaborative International Dictionary of English v.0.48

Secretiveness \Se*cret"ive*ness\, n.
   1. The quality of being secretive; disposition or tendency to
      conceal.
      [1913 Webster]

   2. (Phren.) The faculty or propensity which impels to
      reserve, secrecy, or concealment.
      [1913 Webster]

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