'Secretive' definitions:

Definition of 'secretive'

From: WordNet
adjective
Inclined to secrecy or reticence about divulging information; "although they knew her whereabouts her friends kept close about it" [syn: close, closelipped, closemouthed, secretive, tightlipped]

Definition of 'Secretive'

From: GCIDE
  • Secretive \Se*cret"ive\, a. Tending to secrete, or to keep secret or private; as, a secretive disposition. [1913 Webster]