caffeinated
adjective
caf·fein·at·ed
ˈka-fə-ˌnā-təd 
-fē-ə-
-fē-ə-
1
: stimulated by or as if by caffeine
caffeinated workers
caffeinated rhythms of electronic music—
Marc Weingarten
Marc Weingarten2
: containing caffeine
caffeinated coffee
Examples of caffeinated in a Sentence
Recent Examples on the Web
Last summer, her Hulu documentary Call Her Alex premiered, and she's also spent the year expanding her Unwell Hydration beverage line with new caffeinated beverages.
—Tabitha Parent, PEOPLE, 12 Jan. 2026
The franchise is known for highly caffeinated coffee confections, along with shakes, smoothies and popular seasonal menus.
—Ilana Arougheti, Kansas City Star, 11 Jan. 2026
People taking certain medications or with specific health conditions may need to limit or avoid coffee and other caffeinated drinks based on their healthcare provider's advice.
—Carrie Madormo, Verywell Health, 7 Jan. 2026
At the end of the trial, those who continued caffeinated coffee experienced a 47% recurrence rate of AF or atrial flutter, compared with 64% in the caffeine-abstinent group, translating to about a 39% lower risk of recurrence for coffee drinkers.
—New Atlas, 2 Jan. 2026
See All Example Sentences for caffeinated
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Tabitha Parent, PEOPLE, 12 Jan. 2026
The franchise is known for highly caffeinated coffee confections, along with shakes, smoothies and popular seasonal menus.
—Ilana Arougheti, Kansas City Star, 11 Jan. 2026
People taking certain medications or with specific health conditions may need to limit or avoid coffee and other caffeinated drinks based on their healthcare provider's advice.
—Carrie Madormo, Verywell Health, 7 Jan. 2026
At the end of the trial, those who continued caffeinated coffee experienced a 47% recurrence rate of AF or atrial flutter, compared with 64% in the caffeine-abstinent group, translating to about a 39% lower risk of recurrence for coffee drinkers.
—New Atlas, 2 Jan. 2026
See All Example Sentences for caffeinated
Cite this Entry
“Caffeinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caffeinated. Accessed 17 Jan. 2026.
Copy CitationKids Definition
caffeinated
adjective
caf·fein·at·ed
ˈkaf-ə-ˌnāt-əd
1
: stimulated by or as if by caffeine
2
: containing caffeine
caffeinated coffee
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