precipitously

all of a sudden suddenly unexpectedly

unanticipatedly

headlong

abruptly boldly carelessly daringly excitedly expeditiously feverishly fiercely foolishly frantically furiously hastily headily headstrongly heedlessly hurriedly ill-advisedly impetuously imprudently impulsively inadvisedly incautiously indiscreetly indomitably irresponsibly madly passionately precipitantly precipitately recklessly speedily thoughtlessly unpreparedly unthinkingly unwarily unwisely wildly