Or teams of dubious tech specialists arrive, unannounced, to fix unbroken wiring.
Specific timelines are as yet unannounced, but the principles behind the positions are clear.
She acknowledges that after the 2010 incident there was a de facto and unannounced freeze in building inside East Jerusalem.
To add to the suspense, each day new, previously unannounced films occupy vacant “TBA” slots in the schedule.
I retorted as Geldof plonked himself, unannounced, on the BBC set.
At a little after five, Miss Blackstone stepped in unannounced.
It's my private office, remember, and she's sort of crashed in unannounced.
However, once in a while an unannounced satellite was launched, and these could cause trouble.
Finding he could not walk in unannounced, he stood for a moment, his intention blank.
She got a way of surprising Guy and upsetting his calculations with unannounced extravagances.
c.1500, "proclaim, make known," from Old French anoncier "announce, proclaim" (12c., Modern French annoncer), from Latin annuntiare, adnuntiare "to announce, relate," literally "to bring news," from ad- "to" (see ad-) + nuntiare "relate, report," from nuntius "messenger" (see nuncio). Related: Announced; announcing.