overactive

[oh-ver-ak-tiv]

adjective

exceptionally or excessively active; too active.

Origin of overactive

First recorded in 1640–50; over- + active
Related formso·ver·ac·tiv·i·ty, o·ver·ac·tive·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for overactive

excitable, high-strung, uncontrollable, wild, hyper, overzealous

Examples from the Web for overactive

Contemporary Examples of overactive

Historical Examples of overactive


British Dictionary definitions for overactive

overactive

adjective

inordinately active
(of the thyroid or adrenal gland, nervous system, etc) functioning at too high a capacity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012