unannounced


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un·an·nounced

 (ŭn′ə-nounst′)
adj.
1. Not having been announced: an unannounced change of policy.
2. Being without advance notice; unexpected: an unannounced visit by a relative.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

unannounced

(ˌʌnəˈnaʊnst)
adj
not made known publicly or declared in advance: an unannounced visit.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unannounced - without warning or announcementunannounced - without warning or announcement; "they arrived unannounced"; "a totally unheralded telegram that his daughter...died last night"- M.A.D.Howe
unexpected - not expected or anticipated; "unexpected guests"; "unexpected news"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

unannounced

adverb
1. unexpectedly, unexpected, out of the blue He had just arrived unannounced from South America.
adjective
1. unexpected, unforeseen, unheralded an unannounced visit
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
Translations

unannounced

[ˈʌnəˈnaʊnst]
A. ADJ [visitor, visit] → inesperado
B. ADV to arrive unannouncedllegar sin dar aviso
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

unannounced

[ˌʌnəˈnaʊnst] adjà l'improviste
to arrive unannounced → arriver à l'improviste
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

unannounced

adj, advunangemeldet
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

unannounced

[ˌʌnəˈnaʊnst]
1. adjinatteso/a
2. adv (arrive) → senza preavviso
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
If Stapleton came into the succession, how could he explain the fact that he, the heir, had been living unannounced under another name so close to the property.
A visitor had entered his rooms--apparently unannounced.
I assured him that I was expected, so he allowed me to enter unannounced. His astonishment was a delightful testimony to your reputation, by the bye.
Rochester entered, unannounced, and looking at us, seemed to take pleasure in the spectacle of a group so amicable--when he said he supposed the old lady was all right now that she had got her adopted daughter back again, and added that he saw Adele was "prete e croquer sa petite maman Anglaise"--I half ventured to hope that he would, even after his marriage, keep us together somewhere under the shelter of his protection, and not quite exiled from the sunshine of his presence.
She was passionate, and her present letter, showing that her estimate of him had changed under his delay--too justly changed, he sadly owned,--made him ask himself if it would be wise to confront her unannounced in the presence of her parents.
Making sure that the drawbridge was raised, and that he could not hope for stealthy entrance there, he crept silently to the rear of the great building, and there among the bushes his men searched for the ladder that Norman of Torn had seen the knavish servant of My Lady Claudia unearth, that the outlaw might visit the Earl of Buckingham, unannounced.
It was so sudden, rushing out of the dark, unannounced, into our dull lives.
Lvov was at home, and Levin went in to him unannounced.
It was probable that, little as the van der Luydens encouraged unannounced visits, he could count on being asked to dine, and sent back to the station to catch the nine o'clock train; but more than that he would certainly not get, for it would be inconceivable to his hosts that a gentleman travelling without luggage should wish to spend the night, and distasteful to them to propose it to a person with whom they were on terms of such limited cordiality as Beaufort.
Carthoris of Helium had come all unannounced to the court of his father's friend that day.
He had arrived shortly after the absence of Tara of Helium had been noted, and in the excitement he had remained unannounced until John Carter had happened upon him in the great reception corridor of the palace as The Warlord was hurrying out to arrange for the dispatch of ships in search of his daughter.
At this moment a hasty foot was heard on the staircase, and Georgiana Podsnap broke into the room, unannounced and in tears.