caffeinated

1 of 2

adjective

caf·​fein·​at·​ed ˈka-fə-ˌnā-təd How to pronounce caffeinated (audio) -fē-ə- How to pronounce caffeinated (audio)
1
: stimulated by or as if by caffeine
caffeinated workers
caffeinated rhythms of electronic music—Marc Weingarten
2
: containing caffeine
caffeinated coffee

caffeinated

2 of 2

past tense and past participle of caffeinate

Examples of caffeinated in a Sentence

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Adjective
Health experts also worry that teenagers may lose track of their total caffeine consumption, particularly when combining pouches with energy drinks and other caffeinated foods and beverages. — ABC News, 22 Oct. 2026 Pregnant people are advised to limit caffeine intake to 200 milligrams daily, and children should not be consuming caffeinated drinks. — Faye Chiu, CNN Money, 21 Oct. 2026 Ballmer, who can often be seen bouncing around like a hyper-caffeinated party animal in the Clippers’ home arena, Intuit Dome, is no shrinking violet — he was known as a ferociously hard-charging, hands-on leader at Microsoft. — Business Columnist, Los Angeles Times, 10 Sep. 2026 The doctors’ group, Protect Young Fans, warns of the potential health risks posed by highly caffeinated drinks like Monster Energy, particularly to children and adolescents, citing a growing body of scientific research across the medical spectrum. — Daniel Libit, Sportico.com, 3 Sep. 2026 See All Example Sentences for caffeinated

Word History

First Known Use

Adjective

circa 1896, in the meaning defined at sense 2

Time Traveler
The first known use of caffeinated was circa 1896

Rhymes for caffeinated

See All Rhymes for caffeinated

Browse Nearby Words

caffeinate
caffeinated
caffeine
See all Nearby Words

Cite this Entry

“Caffeinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caffeinated. Accessed 27 Oct. 2026.

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Kids Definition

caffeinated

adjective
caf·​fein·​at·​ed ˈkaf-ə-ˌnāt-əd How to pronounce caffeinated (audio)
1
: stimulated by or as if by caffeine
2
: containing caffeine
caffeinated coffee
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