adverb
Synonyms: fast 2, expeditiously, flat-out, fleetly, full tilt, hastily, posthaste, quickly, rapidly, speedily
Contrasted words: slowly
Antonyms: sluggishly
adverb
Synonyms: fast 2, expeditiously, flat-out, fleetly, full tilt, hastily, posthaste, quickly, rapidly, speedily
Contrasted words: slowly
Antonyms: sluggishly
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003