Definition of unbriefed
: not briefed: such asa : not provided with instructions or information in a briefing The pilots, unbriefed about their mission, flew due east over the Atlantic Ocean for 60 miles. — The St. Louis Post-Dispatchb : not discussed in a briefing an unbriefed issue
From the M-W Editors
First Known Use of unbriefed
1889
Seen and Heard
What made you want to look up unbriefed? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!