| Main Entry: | hastily |
| Part of Speech: | adverb |
| Definition: | with great speed |
| Synonyms: | agilely, apace, carelessly, double-quick, expeditiously, fast, flat-out, heedlessly, hurriedly, impetuously, impulsively, lickety-split, nimbly, on spur of the moment, posthaste, precipitately, prematurely, promptly, quickly, rapidly, rashly, recklessly, speedily, straightaway, subito, suddenly, swiftly, thoughtlessly, too quickly, unpremeditatedly |
| Antonyms: | delayed, slowly |
| Main Entry: | sudden |
| Part of Speech: | adjective |
| Definition: | unexpected; happening quickly |
| Synonyms: | abrupt, accelerated, acute, expeditious, fast, flash, fleet, hasty, headlong, hurried, immediate, impetuous, impromptu, impulsive, out of the blue, precipitant, precipitate, precipitous, quick, quickened, rapid, rash, rushing, spasmodic, speeded, subito, swift, unforeseen, unusual |
| Antonyms: | expected, slow |