overactive

[ oh-ver-ak-tiv ]

adjective

1. exceptionally or excessively active; too active.

overactive

/ ˌəʊvərˈæktɪv /

adjective

1. inordinately active
2. (of the thyroid or adrenal gland, nervous system, etc) functioning at too high a capacity

Other Words From

• over·ac·tivi·ty over·active·ness noun

Word History and Origins

Origin of overactive¹

First recorded in 1640–50; over- + active

Example Sentences

Tufts of black lambswool and recycled nylon sprout up in contrast to the conventional ribbed beanie brim, an homage to the overactive crown chakra that is every Sagittarian’s secret weapon and downfall.

From Los Angeles Times

For people with an overactive bladder, the acidity might also aggravate the urinary system.

From Salon

About 80% of people with an overactive thyroid gland have it.

From BBC

Graves’ disease is an autoimmune disorder in which the thyroid becomes overactive.

From Los Angeles Times

Psychologist Dr. Carla Manly told Salon believing in conspiracy theories “satisfies” the human need for certainty and can temporarily soothe an overactive nervous system.

From Salon

Related Words

• excitable
• high-strung