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.

Aerospace startup Hermeus is moving its headquarters to El Segundo from Atlanta as it aims to build autonomous hypersonic aircraft for the military, the latest sign of revival in the region’s aerospace and defense sectors.

From Los Angeles Times • Apr. 7, 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

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

From Barron's • Apr. 6, 2026

President Donald Trump last year ordered his administration to develop a plan for a space-based shield capable of intercepting ballistic, cruise and hypersonic missiles, which he dubbed the “Golden Dome.”

From MarketWatch • Mar. 25, 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

Related Words