se·cre·tive / ˈsēkritiv/ • adj. (of a person or an organization) inclined to conceal feelings and intentions or not to disclose information: she was very secretive about her past. ∎ (of a state or activity) characterized by the concealment of intentions and information: secretive deals. ∎ (of a person's expression or manner) having an enigmatic or conspiratorial quality: a secretive smile. DERIVATIVES: se·cre·tive·ly adv. se·cre·tive·ness n.