hyperexcited

adjective

hy·​per·​ex·​cit·​ed ˌhī-pər-ik-ˈsī-təd 

variants or hyper-excited

: extremely or excessively excited : characterized by or displaying intense or excessive excitement or excitation

a hyper-excited dog

And I really like that "Iron Chef" show where the Japanese host, who clearly needs to switch to decaf, gets all hyperexcited about the secret ingredient.

—The Flint (Michigan) Journal

The daily pill is believed to ease withdrawal symptoms by quieting areas in the brain that become hyperexcited after drinking alcohol is stopped.

—Kay Lazar

Instead of playing these nerdy, hyper-excited or sensitive characters, I'd rather just be this loser that I really am.

—Ali Wong

hyperexcitement

ˌhī-pər-ik-ˈsīt-mənt 

noun

or less commonly hyper-excitement

Isaac, meanwhile, is spinning the revolving door of the cafe wildly in hyperexcitement of seeing Santa.

—Daniel P. Finney

Reich captures the enthusiasm, transcendent optimism and hyperexcitement that characterized everything Nelson Rockefeller did …

—Casper W. Weinberger

… manic-depressive patients—who alternate between hyper-excitement and depression over many years …

—Solomon H. Snyder

Word History

First Known Use

1826, in the meaning defined above

Medical Definition

hyperexcited

adjective

hy·​per·​ex·​cit·​ed -rik-ˈsīt-əd 

: characterized by unusual or excessive excitement

an acute hyperexcited state

hyperexcitement

-rik-ˈsīt-mənt 

noun