caffeinated

Back-formation from decaffeinated.

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caffeinated (comparative more caffeinated, superlative most caffeinated)

1. Containing caffeine naturally (e.g., coffee, tea, and cacao [whose seeds are used to make cocoa, chocolate, and their various derivative products]) or as an additive (e.g., soft drinks, sports drinks, or energy drinks).
2. (slang) Overly peppy or energetic (as in a person or pet).

• regular (as in coffee)
• leaded (as in coffee)
• juiced (as in energy drinks)

• decaffeinated
• decaf
• caffeine-free (as in soft drinks)
• unleaded (as in coffee)

caffeinated

1. simple past tense and past participle of caffeinate