caffeinated

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

Examples of caffeinated in a Sentence

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.
In Quebec, a 14-year-old girl was found dead behind her school after consuming a caffeinated alcoholic drink called FCKD UP. — Ashley Okwuosa, STAT, 30 July 2026 The statement’s authors say more research is still needed to understand all the ways different caffeinated drinks impact the heart. — Helen Carefoot, Flow Space, 24 July 2026 The researchers similarly concluded that drinking two to four cups of caffeinated coffee a day was linked to a lower risk of heart disease, heart failure, and stroke. — Orianna Rosa Royle, Fortune, 22 July 2026 Some social-media influencers claim the lightly caffeinated beverage can provide a sense of calm, long-lasting energy, laser-sharp focus, and other benefits. — Stacey Colino, Time, 22 July 2026 See All Example Sentences for caffeinated

Word History

First Known Use

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 7 Aug. 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
Last Updated: - Updated example sentences
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