SWIFTLY Synonyms: 52 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/swiftly
WEBSynonyms for SWIFTLY: quickly, rapidly, fast, quick, soon, promptly, immediately, hastily; Antonyms of SWIFTLY: slowly, sluggishly, slow, deliberately, lingeringly, leisurely, belatedly, ploddingly
DA: 69 PA: 87 MOZ Rank: 54