Quick, energetic and active. (Cambridge Dictionary)
A brisk activity or action is done quickly and in an energetic way. (Collins Dictionary)
If trade or business is brisk, things are being sold very quickly and a lot of money is being made. (Collins Dictionary)
Keenly alert: Lively. (Merriam – Webster)
Pleasingly tangy. (Merriam – Webster)
Fresh, invigorating. (Merriam – Webster)
Examples
Businessman Walks Quickly Represents Fast Track And Brisk.

Brisk Reflexes: What You Should Know.
https://www.healthline.com/health/brisk-reflexes
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