closed-door

In closed-door hearing with U.S. congressmen, Kerry said U.S. policy in Syria is failing.
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“Jaafari was insulting Brahimi in the closed-door negotiations,” another diplomatic source said.
UN’s Brahimi: Round One of Syria Peace Talks Failed|Josh Rogin|February 1, 2014|DAILY BEAST
The closed-door powwow promises to be an electrifying exercise in spleen venting, thrust upon them by their Senate brethren.
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Issa once promised that he would release all the transcripts of his closed-door proceedings.
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The President spent time in closed-door meetings with Prime Minister Netanyahu discussing Syria and Iran.
Kerry Squanders Obama’s Good Work In Israel|Abraham Katsman|April 11, 2013|DAILY BEAST

British Dictionary definitions for closed-door

closed-door

adjective

private; barred to members of the publica closed-door meeting

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012