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.

The Timms report finds that there’s been a surge in Brits under age 40 collecting benefits for incapacitating ADHD, autism, anxiety or depression.

From The Wall Street Journal • Jul. 10, 2026

I would say your skill falls somewhere between like situational awareness and ADHD.

From Los Angeles Times • Jul. 7, 2026

From start to finish, the day is a true assault on the senses - not least for my nine-year-old son, who is autistic and has ADHD.

From BBC • Jul. 6, 2026

Hayley says she loves many things about having ADHD, such as being a "fun auntie"

From BBC • Jun. 26, 2026

Percy didn’t believe it because she always made excellent grades, but like most demigods, she was ADHD.

From "The Mark of Athena" by Rick Riordan

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