Khufiya : خُفیہ
2. Cryptic, Cryptical, Deep, Inscrutable, Mysterious, Mystifying : خفیہ : of an obscure nature.
3. Covert : خفیہ - پوشیدہ : (adjective) secret or hidden; not openly practiced or engaged in or shown or avowed.
4. Clandestine, Cloak-And-Dagger, Hole-And-Corner, Hugger-Mugger, Hush-Hush, Secret, Surreptitious, Undercover, Underground : خفیہ : conducted with or marked by hidden aims or methods.
5. Confidential : خفیہ : entrusted with private information and the confidence of another.
7. Concealed, Hidden, Out Of Sight : چھپاہوا - خفیہ : not accessible to view.
8. Conspirative, Conspiratorial : خفیہ - سازشی : (adjective) relating to or characteristic of conspiracy or conspirators.
9. Classified : خفیہ : (adjective) official classification of information or documents; withheld from general circulation.
Ilm, Shaoor, Agahi : Knowledge : the psychological result of perception and learning and reasoning. "A little knowledge is a dangerous thing"
Aadat, Fitrat : Nature : the complex of emotional and intellectual attributes that determine a person`s characteristic actions and reactions. "He is bound to his nature"
Karkhana Qudrat : Nature : the essential qualities or characteristics by which something is recognized. "It is the nature of fire to burn"
Mamah, Samajh Na Aanay... : Secret : something that baffles understanding and cannot be explained. "How it got out is a mystery"