frenzied
Wildly excited and out of control, like chaotic rushing.
Frenzied means wildly excited, rushed, or out of control, like a swarm of activity that's lost all order and calm. When shoppers make a frenzied rush for the best deals on Black Friday, they're not walking calmly through the store: they're racing, pushing, and grabbing items in a chaotic scramble.
The word captures a specific kind of energy that's crossed the line from merely busy or excited into something more desperate and disorganized. A frenzied crowd at a concert might surge forward all at once. A student making a frenzied search for a lost assignment is tearing through their backpack, dumping out folders, checking every pocket in a panic.
You can also see frenzied activity in nature: animals in a feeding frenzy attack their prey in a wild, competitive rush. A dog might engage in frenzied digging when it thinks it's found something interesting underground.
Notice that frenzied almost always suggests too much intensity: it's energy that's tipped over into chaos. When someone works in a frenzied way, they're probably not being careful or thoughtful.