unanticipated Synonyms

unforeseen out of the blue unlooked-for unprepared for unseen unforeseeable unexpected undreamt swift surprising sudden stunning startling unintentional unintended not in the cards not bargained for without warning unsuspected unpredicted unimagined unheralded unannounced unplanned eye-opening splendid shocking remarkable extraordinary dumfounding charming chance casual astounding astonishing appealing amazing adventitious accidental fabulous fantastic fortuitous quick precipitous precipitate precipitant overwhelming oversoon matinal marvelous