alacritous

/əˈlækrɪtəs/
adjective
  1. Brisk, cheerful, and eager in manner or action; showing alacrity.
    • She gave an alacritous nod and began the task immediately.
    • The alacritous waiter refilled our glasses before we even asked.
    • The team's alacritous response to the emergency impressed everyone.
Antonyms
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