secretive
1. [ adjective ] inclined to secrecy or reticence about divulging information
Synonyms: closelipped closemouthed tightlipped close
Examples:

"although they knew her whereabouts her friends kept close about it"

Related terms: uncommunicative
Similar spelling:   secretively
  secret
  secrete
  secretin
  secreter
  secretion
  secreting
  secretase
  secretaire
  secretariat
  secret_code
  secretor
  secretly
  secret_agent
  secretory
  secretary
  secretariate
  secured
  secretarial
  secret_plan
  sea_cradle