precipitously Synonyms

sharply haphazardly aggressively unexpectedly suddenly without warning instantaneously wildly unawares swiftly steeply brashly frantically heedlessly unthinkingly thoughtlessly recklessly offhandedly on a whim imprudently impetuously furiously hurriedly incautiously speedily precipitantly headily headfirst hastily glancingly foolishly endways dashingly carelessly automatically acutely headlong helter-skelter sharp rashly rapidly quickly precipitately pell-mell instantly impulsively impromptu immediately abruptly