swiftness

swift·ness
S1W4I1F4T1N1E1S1S1
/ˈswɪftnɪs/

noun

The state of being swift.

“act with swiftness”

Similar
celerityhasterapidityspeedfastness
OriginMiddle English swiftnesse ← Old English swiftnes →
UncommonScrabble 15
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Meanings

nounswiftness (usually uncountable, plural swiftnesses)

plural swiftnesses

  1. uncountableusuallyThe state of being swift.

    act with swiftness

    5 more examples

    with remarkable swiftness

    demonstrate swiftness

    The swiftness of his reaction saved the child.

    They admired the swiftness of the river’s current.

    He completed the task with unexpected swiftness.

    Synonyms: celerity, haste, rapidity

Synonyms & antonyms

nounThe state of being swift.

Similar
celerityhasterapidity

More synonyms by meaning

nouna rate (usually rapid) at which something happens

Similar
speedfastness
Broader
pacerate
Also see
alacrityfastnessfleetnessspeed

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Old Englishswiftnes“swiftness”
  2. Middle Englishswiftnesse
  3. Englishswiftness

From Middle English swiftnesse, swyftnesse, from Old English swiftnes (“swiftness”), equivalent to swift + -ness.

More words from Middle English, Old English

Full word history & related roots →
Cite this entry
APA

swiftness. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/swiftness

MLA

“swiftness.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/swiftness. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “swiftness,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/swiftness.

Source: swiftness on Wiktionary, CC BY-SA 4.0.