unannounced Synonyms

unheralded unpredicted not disclosed blindsiding unidentified camouflaged unexpectedly unforeseen withheld untold unlooked-for unforeseeable out of the blue Out of nowhere unplanned without warning covered up unprovided for unpublished unpledged unhyped undisclosed undeclared unanticipated unexpected surprising disguised disconcerting discomfiting conspicuous confusing confounding concealed clandestine astonishing amazing dismaying dismissed extraordinary surprise sudden startling spontaneous quick precipitate incomprehensible impromptu hasty flustering abrupt