hyperexcitable

/ˌhaɪpərɪkˈsaɪtəbəl/
adjective
  1. Extremely easy to excite or become overly stimulated, often in a way that is hard to control.
    • After drinking too much coffee, she felt hyperexcitable and couldn't sit still.
    • The hyperexcitable puppy barked at every leaf that blew past the window.
    • The crowd was hyperexcitable, cheering wildly before the concert even started.
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