unlooked-for Synonyms

unanticipated unforeseen unexpected out of the blue unsought unintentional serendipitous incidental not in the cards unseen unhoped-for unhoped swift iffy eye-opening not bargained for without warning unsolicited unpredicted unheralded unannounced unpredictable unplanned payback surprising surprise fluky extraordinary electrifying chance casual astonishing amazing aleatory adventitious accidental fortuitous gratuitous happy sudden startling random quick precipitate instantaneous inadvertent impulsive impetuous hasty abrupt