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Showing results for supersonic. Search instead for supercondu.
Definitions

supersonic

[soo-per-son-ik] / ˌsu 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 hypersonic 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 velocious
Antonyms
STRONGEST
clumsy slow
STRONG
dull
WEAK
plodding tardy unhurried
ADJECTIVE
speedy
Synonyms
STRONGEST
accelerated brisk expeditious hasty hurried immediate prompt rapid swift
WEAK
agile alacritous breakneck express fleet harefooted headlong lissome lively nimble precipitate quick-fire rapid-fire ready snappy split-second summary ultrasonic winged
Antonyms
STRONGEST
delayed leisurely slow sluggish
WEAK
halted slowed tardy
ADJECTIVE
swift
Synonyms
STRONGEST
abrupt expeditious hasty nimble quick rapid speedy sudden unexpected
STRONG
cracking express fleet flying precipitate prompt ready screaming short spanking
WEAK
alacritous barrelling breakneck double-quick fleet-footed headlong hurried in nothing flat like crazy like mad on the double pronto shaking a leg short-lived snappy speedball winged
Antonyms
STRONGEST
delayed expected lazy leisurely slow
WEAK
sluggish
NOUN
jet
Synonyms
STRONGEST
airplane plane
STRONG
airbus
WEAK
supersonic transport turbo

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.

Known for: Highly maneuverable, supersonic light fighter, excellent dogfighting capabilities.

From The Wall Street Journal • Mar. 6, 2026

Known for: Highly maneuverable, supersonic light fighter, excellent dogfighting capabilities.

From The Wall Street Journal • Mar. 6, 2026

I don’t want to go too deep into the plot, which involves a supersonic weapon, stolen software, assassins on motorcycles and a common ticking-clock device, but it’s closer to “Moonraker,” say, than “Slow Horses.”

From Los Angeles Times • Feb. 23, 2026

The arena, first announced in 2018, will be located in one of three Brabazon Hangars which were used in the development of the supersonic jet.

From BBC • Feb. 19, 2026

She had set world records with supersonic aircraft, including a speed record of 2,683 kph in a MiG-21.

From "Women in Space" by Karen Bush Gibson

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