Check out new words added to


[kaf-uh-ney-tid] /ˈkæf əˌneɪ tɪd/
containing caffeine:
a caffeinated soft drink.
Origin of caffeinated
caffeine + -ate1 + -ed2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for caffeinated
  • They found that green tea extracts and polyphenols--particularly those from caffeinated beverages--inhibited bacterial growth.
  • Furthermore, the same effects were observed when the experimenters used decaffeinated coffee instead of the regular caffeinated.
  • And to avoid your anticipated caffeinated response, the same will hold true even if a perfect human clone is ever produced.
  • The fridge holds a couple cases of caffeinated soda to keep the coders up and an equal amount of beer to bring them down.
  • If you're looking for a quick pick-me-up, don't reach for a bowl of ice cream or a caffeinated energy drink.
  • Coffee, tea or caffeinated soda will keep you alert and awake until the evening, when you can engage in your normal sleep cycle.
  • Avoid caffeinated and alcoholic beverages, as well as overly salty foods or over-the-counter diuretics.
  • Avoid alcohol or caffeinated drinks, as they will only dehydrate you.
  • Supplement with electrolytes to stay hydrated, and don't count caffeinated or sugary drinks in that gallon.
  • Some prescription drugs can enhance the effects of coffee and other caffeinated drinks.
British Dictionary definitions for caffeinated


  1. with no natural caffeine removed
  2. with added caffeine
highly stimulated by caffeine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for caffeinated

Few English speakers likely know this word

Word Value for caffeinated

Scrabble Words With Friends