SWIFTNESS Synonyms: 45 Similar and Opposite Words

swiftness

noun

ˈswif(t)-nəs

Definition of swiftness

as in speed

a high rate of movement or performance with amazing swiftness, the airline agent got our ticket changed, and we boarded the plane just as it was about to leave

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of swiftness The swiftness with which Blondie was killed and the seeming lack of consideration for the fate of her offspring sparked outrage as, typically, cubs would remain close to their mother for the first 18 months of their life. — Clara Harter, Los Angeles Times, 13 May 2026 Lee, working with a script by Alan Fox, spins out the multiple threads of action with startling swiftness and characteristically rapid-fire, confrontational dialogue. — Brady Brickner-Wood, New Yorker, 21 Jan. 2026 However, college basketball has never featured a greater disparity between the haves and the have-nots, largely due to the transfer portal, which allows powerhouses like Florida to snatch mid-major stars with such swiftness that the sport has yet to take preventative action. — Noah White, Miami Herald, 21 Mar. 2026 Marin stuck to her plan of staying close until a moment that changed everything with shocking swiftness — her changing her mind and going for the green on the par-5 13th for a go-ahead birdie, and Talley adding to the sad history of collapses on the back nine at the home of the Masters. — ABC News, 4 Apr. 2026 See All Example Sentences for swiftness

Recent Examples of Synonyms for swiftness

Noun

The Beltline allows only Class 1 or 2 e-bikes and speeds of only up to 15 mph.

— Doug Turnbull, AJC.com, 5 July 2026
Pfendler appears to have broken both the previous women's speed record as well as the men's speed record, according to records maintained by Ocean Rowing Society International, which adjudicates ocean-rowing achievements for Guinness World Records.

— ABC News, ABC News, 4 July 2026

Definition of speed

Noun

The underwater navigation itself is also power-hungry, as the robot has to rely on inertial sensors and acoustic Doppler velocity logging to track its position, since satellite navigation is useless once it's submerged.

— New Atlas, New Atlas, 5 July 2026
Gage’s velocity noticeably declined towards the tail end of his outing.

— Justice delos Santos, Mercury News, 4 July 2026

Definition of velocity

Browse Nearby Words

swiftly

swiftness

swig

See all Nearby Words

Cite this Entry

Style

“Swiftness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/swiftness. Accessed 7 Jul. 2026.

Copy Citation

Synonyms of swiftness

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on swiftness

More from Merriam-Webster

Word of the Day

perfunctory

Popular in Grammar & Usage

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Popular in Wordplay

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World

Popular

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

Games & Quizzes