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
However, consuming a caffeinated beverage may unknowingly spike your cortisol levels, as caffeine can stimulate the production and release of the hormone.
—Angelica Bottaro, Verywell Health, 30 Sep. 2025
The heavily caffeinated event, featuring inspirational speakers, a global barista competition, and a cold brew takeover of the Las Vegas Sphere, cost enough to merit a mention in Starbucks’ earnings statement.
—Andrew Edgecliffe-Johnson, semafor.com, 26 Sep. 2025
The researchers recommended adopting better sleep practices, including cutting out caffeinated beverages in the afternoon, cutting down on alcohol consumption, avoiding large meals or exercise before going to bed, and reducing exposure to electronics prior to bedtime.
—Melissa Rudy, FOXNews.com, 18 Sep. 2025
Diet caffeinated and decaffeinated sodas were close behind (around 7% of people reported drinking one).2
Over the course of about 12 years, 1,706 participants developed lung cancer.
—Brian Mastroianni, Health, 21 Aug. 2025
See All Example Sentences for caffeinated
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Angelica Bottaro, Verywell Health, 30 Sep. 2025
The heavily caffeinated event, featuring inspirational speakers, a global barista competition, and a cold brew takeover of the Las Vegas Sphere, cost enough to merit a mention in Starbucks’ earnings statement.
—Andrew Edgecliffe-Johnson, semafor.com, 26 Sep. 2025
The researchers recommended adopting better sleep practices, including cutting out caffeinated beverages in the afternoon, cutting down on alcohol consumption, avoiding large meals or exercise before going to bed, and reducing exposure to electronics prior to bedtime.
—Melissa Rudy, FOXNews.com, 18 Sep. 2025
Diet caffeinated and decaffeinated sodas were close behind (around 7% of people reported drinking one).2
Over the course of about 12 years, 1,706 participants developed lung cancer.
—Brian Mastroianni, Health, 21 Aug. 2025
See All Example Sentences for caffeinated
Cite this Entry
“Caffeinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caffeinated. Accessed 4 Oct. 2025.
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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