Ephemeral (adj): Lasting for a very short time interval. (अल्पकाविक)
Synonyms: Transient, Fleeting, Cursory, Evanescent
Antonyms: Ceaseless, Permanent, Perpetual, Eternal
Example: Gadgets are ephemeral,always latest version drive out the last version.
I am not referring to criminals torturing their captives, but of that somebody who has ephemeral custody, semi-legal, pre-legal, legal, over that someone’s body and mind