Synonyms: unexpected
Definition: not expected or anticipated
Usage: unexpected guests; unexpected news
Similar words: unannounced, unheralded, unpredicted
Definition: without warning or announcement
Usage: they arrived unannounced; a totally unheralded telegram that his daughter...died last night- M.A.D.Howe
Similar words: unanticipated, unforeseen, unlooked-for, out of the blue
Definition: not anticipated
Usage: unanticipated and disconcerting lines of development- H.W.Glidden; unforeseen circumstances; a virtue unlooked-for in people so full of energy; like a bolt out of the blue
Similar words: unhoped, unhoped-for, unthought, unthought-of
Definition: so unexpected as to have not been imagined
Usage: an unhoped-for piece of luck; an unthought advantage; an unthought-of place to find the key
Similar words: unprovided for
Definition: not prepared or ready for
Similar words: upset
Definition: used of an unexpected defeat of a team favored to win
Usage: the Bills' upset victory over the Houston Oilers