ballistic

adjective

bal·​lis·​tic bə-ˈli-stik How to pronounce ballistic (audio)
Synonyms of ballisticnext
1
: extremely and usually suddenly excited, upset, or angry : wild
He went ballistic when he saw the dent in his car.
and the crowd goes ballistic
2
: of or relating to the science of the motion of projectiles in flight
3
exercise : being or characterized by repeated bouncing
ballistic stretching
4
physics, of an object in motion : behaving like a projectile
But the Bell Labs switch uses such a low current that the few ballistic electrons are a distance of a micrometer or more apart …Robert Pool
5
of a material : capable of resisting or stopping bullets or other projectiles
ballistic glass
ballistic nylon
… engineered specifically to be worn under ballistic vests and shirts.K. M. Reese
ballistically adverb

Examples of ballistic in a Sentence

she went ballistic when she discovered her brother reading her e-mail
Recent Examples on the Web
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.
Detectives connected Roath to the shooting through the use of city cameras, license plate readers, phone records, and ballistic evidence — including a 9mm shell casing found outside Kourtney’s home that traced back to a gun found under Roath’s mattress in his bedroom, according to court documents. Kansas City Star, 27 Jan. 2026 The Golden Dome is a long-term missile defense concept aimed at protecting North America from ballistic, cruise and hypersonic missile threats. Emma Bussey, FOXNews.com, 26 Jan. 2026 This could, in theory, have offered interesting ballistic protection akin to angled armor. Christopher McFadden, Interesting Engineering, 26 Jan. 2026 The main changes occur on the upper, which swaps out the shoe’s usual ballistic nylon for a full-leather construction that extends to the lace loops, heel tabs and tongues. Riley Jones, Footwear News, 24 Jan. 2026 See All Example Sentences for ballistic

Word History

Etymology

borrowed from New Latin ballisticus "relating to the motion of projectiles in flight," from Latin ballista ballista + New Latin -icus -ic entry 1

Note: The Latin word was apparently introduced by the French priest and polymath Marin Mersenne (1588-1648) in Ballistica et acontismologia, a section (with separate title page) of his Cogitata physico-mathematica (Paris, 1644).

First Known Use

1764, in the meaning defined at sense 2

Time Traveler
The first known use of ballistic was in 1764

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Cite this Entry

“Ballistic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ballistic. Accessed 29 Jan. 2026.

Kids Definition

ballistic

adjective
bal·​lis·​tic bə-ˈlis-tik How to pronounce ballistic (audio)
: of or relating to ballistics

More from Merriam-Webster on ballistic

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