Im*pet"u*ous*ly

from The Collaborative International Dictionary of English v.0.48
Impetuous \Im*pet"u*ous\, a. [F. impetueux, L. impetuosus. See
   {Impetus}.]
   1. Rushing with force and violence; moving with impetus;
      furious; forcible; violent; as, an impetuous wind; an
      impetuous torrent.
      [1913 Webster]

            Went pouring forward with impetuous speed. --Byron.
      [1913 Webster]

   2. Vehement in feeling; hasty; passionate; violent; as, a man
      of impetuous temper.
      [1913 Webster]

            The people, on their holidays,
            Impetuous, insolent, unquenchable.    --Milton.

   Syn: Forcible; rapid; hasty; precipitate; furious;
        boisterous; violent; raging; fierce; passionate. --
        {Im*pet"u*ous*ly}, adv. -- {Im*pet"u*ous*ness}, n.
        [1913 Webster]
    
from Moby Thesaurus II by Grady Ward, 1.0
59 Moby Thesaurus words for "impetuously":
      a corps perdu, abruptly, bang, carelessly, dash, desperately,
      furiously, happen what may, hastily, head over heels, headfirst,
      headforemost, headlong, heedlessly, heels over head,
      helter-skelter, holus-bolus, hotfoot, hotheadedly, hurriedly,
      hurry-scurry, impulsively, like a flash, like a thunderbolt,
      like crazy, like mad, madly, of a sudden, on short notice,
      overeagerly, overenthusiastically, overzealously, plop, plump,
      plunk, pop, precipitantly, precipitately, precipitously, quickly,
      ramble-scramble, rashly, recklessly, sharp, slam-bang, slap,
      slap-bang, slapdash, smack, startlingly, sudden, suddenly,
      surprisingly, unawares, unexpectedly, wantonly, wildly,
      without notice, without warning

    

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