hypersonic

[hahy-per-son-ik] / ˌhaɪ pərˈsɒn ɪk /

ADJECTIVE

fast

Synonyms

STRONGEST

agile brisk hot nimble quick rapid swift

STRONG

accelerated active dashing electric flashing fleet fleeting flying hurried racing ready snap split-second winged

WEAK

PDQ blue streak breakneck double-time expeditious expeditive hairtrigger hasty in a jiffy in nothing flat lickety split like a bat out of hell like all get out like crazy like mad on the double posthaste presto pronto screamin' snappy speedball supersonic velocious

Antonyms

STRONGEST

clumsy slow

STRONG

dull

WEAK

plodding tardy unhurried

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Beyond supersonic travel lies hypersonic travel, which involves flying at Mach 5 or above and comes with intense thermal challenges that have yet to be resolved.

From The Wall Street Journal • May 15, 2026

The company’s goal is to eventually develop a hypersonic plane reaching Mach 5, or five times the speed of sound, and Southern California has the engineering talent base to help achieve that, executives said.

From Los Angeles Times • Apr. 7, 2026

There may be "exquisite unique hypersonic capabilities or other bespoke systems that could be used against specific targets," he said.

From Barron's • Apr. 7, 2026

In addition to drones, Kratos makes parts for solid rocket motors and hypersonic technologies.

From Barron's • Apr. 6, 2026

The most visionary of the brain busters pined for the day when a pilot could take one of their creations for a hypersonic joy ride: Mach 5 or faster.

From "Hidden Figures" by Margot Lee Shetterly

hypersonic

Example Sentences

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