hyperactive

[hahy-per-ak-tiv]
adjective
1.
unusually or abnormally active: a company's hyperactive growth; the child's hyperactive imagination.
2.
(of children) displaying exaggerated physical activity sometimes associated with neurologic or psychologic causes.

Origin:
1865–70; hyper- + active

hyperaction [hahy-per-ak-shuhn] , noun
hyperactively, adverb
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World English Dictionary
hyperactive (ˌhaɪpərˈæktɪv)
 
adj
abnormally active
 
hyper'action
 
n
 
hyperac'tivity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

hyperactive hy·per·ac·tive (hī'pər-āk'tĭv)
adj.

  1. Highly or excessively active, as a gland.

  2. Having behavior characterized by constant overactivity.

  3. Afflicted with attention deficit disorder.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
One shrubby perennial is so popular with these hyperactive birds, it's commonly
  called hummingbird trumpet.
Hyperactive behavior usually refers to a group of characteristics.
The content of the article made me sleepy and hyperactive at the same time.
Other characters all boast memorable traits, from the hyperactive undercover
  waitress to the endlessly dancing detective.
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