I. adjective
Synonyms: precipitate 1, abrupt, hasty, headlong, hurried, impetuous, precipitant, precipitous, rushing, subitaneous
Related Word: accelerated, quickened, speeded; expeditious, fast, fleet, rapid, swift
II. adverb
1.
Synonyms: unawares , aback, short, suddenly, unanticipatedly, unaware, unawaredly, unexpectedly
2.
Synonyms: short 1, abruptly, asudden, forthwith, suddenly