Synonyms

ADHD

American

[ey-dee-eych-dee] / ˈeɪˌdiˈeɪtʃˌdi /

abbreviation

attention deficit hyperactivity disorder: a condition, usually apparent in childhood but often persisting into adulthood, characterized by difficulties with executive function, lack of focus, hyperactivity, and/or impulsiveness: the three subtypes of ADHD are inattentive, hyperactive-impulsive, and combined.

ADHD British

abbreviation

attention deficit hyperactivity disorder

"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

ADHD Scientific

Abbreviation of attention deficit hyperactivity disorder

Etymology

Origin of ADHD

First recorded in 1985–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

ADHD

Examples can include speaking too loudly in a library or struggling to control impulses, difficulties that can occur with ADHD.

From Science Daily ● Aug. 20, 2026

The NHS estimates, external that about 2.5 million people in England have ADHD, including those without a formal diagnosis.

From BBC ● Aug. 19, 2026

Her daughter was born early with a cleft palate, facial symptoms of sodium valproate syndrome as well as ADHD.

From BBC ● Aug. 11, 2026

Loss of motivation is common in conditions such as depression, addiction, and ADHD.

From Science Daily ● Aug. 5, 2026

I figured Pandora had been completely ADHD, like me.

From "The Last Olympian" by Rick Riordan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023