RAPIDNESS Synonyms: 45 Similar and Opposite Words

rapidness

noun

Definition of rapidness

as in velocity

a high rate of movement or performance the rapidness of the response to a call for assistance is critical in saving the victim of a heart attack

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for rapidness

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

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

Plus, new members of this meat service can get 15% off their first order, and select states get free flat-rate shipping on orders of $125 or more.

— Rachel Cortez, USA Today, 4 July 2026
The 2026 tournament has the highest rate of goals per match in decades and is the first in World Cup history to have scored more than 200 goals (with two dozen matches still left to play).

— Ashley Mowreader, NBC news, 3 July 2026

Definition of rate

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.

Browse Nearby Words

rapidly

rapidness

rapid(s)

See all Nearby Words

Cite this Entry

Style

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

Copy Citation

Synonyms of rapidness

noun

Example Sentences

Browse Nearby Words

Cite this Entry

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