What does hyperactivity mean?
Hyperactivity means a state of excessive, unusually high, or difficult-to-control activity. In general conversation, the word can describe a restless child, an animated group, or any situation in which people seem unable or unwilling to remain still. It often carries a mildly negative connotation because the activity is presented as excessive or disruptive, though it can also be used neutrally in medical and educational discussions. In psychology, hyperactivity is one of the characteristic features of attention-deficit hyperactivity disorder, alongside inattention and impulsivity. The word is especially common when discussing children, but it can apply to adults, animals, or an entire group. Because it can sound judgmental in casual use, a more precise description may be preferable when discussing a medical condition or an individual behavior.
nounExcessive or unusually high levels of activity, especially activity that is impulsive, restless, or difficult to control. In psychology and medicine, it may refer to a condition characterized by persistent overactivity, inattention, and impulsivity.
- Excessive or unusually intense activity, especially in a child or group.
- A psychological or medical condition marked by persistent overactivity, inattention, and impulsive behavior.
"His hyperactivity made it difficult for him to sit still during the lesson."
"The teacher noticed an increase in hyperactivity whenever the children were given free time."
"The assessment was designed to identify symptoms of hyperactivity and impulsivity in young children."
Usually plural when referring to separate instances or types of excessive activity.
"The program addresses different forms of hyperactivities in young children."
Sometimes the most memorable word in a classroom is the one that names the energy that refuses to sit still.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hyperactivity come from?
Hyperactivity was formed in the 19th century from the Greek-derived prefix hyper-, meaning 'over' or 'excessively,' and activity, which comes from Latin activitas, a noun based on activus, 'active' or 'doing.' The compound follows the English pattern of using a combining form with an existing noun to describe a condition or quality. Related words such as active, reactivity, and radioactivity share the Latin root activus.
Related word forms
How hyperactivity is actually used
In everyday use, hyperactivity is often informal and can describe a temporary burst of restless or overly energetic behavior. In clinical and educational contexts, it is used more specifically and may refer to symptoms associated with attention-deficit hyperactivity disorder.
Easily confused with hyperactivity
Hyperactivity is the noun referring to excessive activity or a pattern of behavior, while hyperactive is the adjective describing a person, thing, or state characterized by that behavior.
Restlessness can mean an inability to stay still or relaxed, whereas hyperactivity more strongly suggests unusually excessive or difficult-to-control activity.