swiftness swiftlike • swifty · · · Info · Definitions · Synonyms · Characters · · swiftness · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a rate (usually rapid) at which something happens. Synonyms: speed, fastness. Examples: "The project advanced with gratifying speed." · · Noun Definition 1 Synonyms · · · speed · · Synonym 1 fastness · · Synonym 2 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 w latin small letter w U+0077