incommunicado

[ in-kuh-myoo-ni-kah-doh ]

/ ˌɪn kəˌmyu nɪˈkɑ doʊ /

(especially of a prisoner) deprived of any communication with others.

Origin of incommunicado

1835–45, Americanism; < Spanish incomunicado. See in-³, communicate

The head of al Qaeda was hiding but he was not incommunicado.

Abbottabad Documents Reveal Osama’s High Hopes for Obama Assassination |Bruce Riedel |May 5, 2012 |DAILY BEAST
If you want to be incommunicado for days on end, become an insurance agent, not a governor.

Sanford's Dereliction of Duty Trumps His Hypocrisy |Paul Begala |June 24, 2009 |DAILY BEAST
He left town without telling even his wife where he was going and was incommunicado for several days.

Runaway Governor: The Sequel |Kathleen Parker |June 23, 2009 |DAILY BEAST
If we could have, we'd have even Introverted the Maintainer, broken all the ties that bind us, chanced it incommunicado.

The Big Time |Fritz Reuter Leiber

I really was incommunicado so far as the outside world was concerned.

The Road |Jack London
The officers and privates were supposed to be strictly "incommunicado," but even these found means of communication.

History of Kershaw's Brigade |D. Augustus Dickert

incommunicado

/ (ˌɪnkəˌmjuːnɪˈkɑːdəʊ) /

(postpositive) deprived of communication with other people, as while in solitary confinement

C19: from Spanish incomunicado, from incomunicar to deprive of communication; see in- 1, communicate