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Showing results for hypersonic. Search instead for hypersomie.
Definitions

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.

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 Army is also developing a hypersonic missile with a range of over 1,000 miles that travels at five times the speed of sound.

From The Wall Street Journal • Mar. 19, 2026

It has contracts with drug companies and also the military, which tests technology at hypersonic speeds as the capsules return to Earth.

From Los Angeles Times • Mar. 4, 2026

These include hypersonic missiles, space and cyber weapons, drones, and as ever nuclear weapons.

From The Wall Street Journal • Jan. 23, 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

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.