Psychology
What does ADHD mean?
Acronym for attention-deficit/hyperactivity disorder: a neurodevelopmental diagnosis of inattention and/or hyperactivity-impulsivity that gets in the way of life in more than one setting.
Definition
ADHD names a clinical pattern: ongoing inattention (losing the thread, dropping unstimulating tasks, living in piles) and/or hyperactivity-impulsivity (restlessness, blurting, trouble waiting) that start in childhood and often continue in adults. NIMH and the DSM treat it as a neurodevelopmental disorder. Diagnosis is a history plus impairment across settings — not a blood test and not a personality aesthetic.
DSM-5 uses three presentations, not three separate illnesses: predominantly inattentive, predominantly hyperactive-impulsive, or combined. People who only recognise themselves in the first still say ADD. That label comes from DSM-III (1980); later manuals folded it into ADHD. Attention is rarely absent. Many describe hyperfocus on what pays off internally and a stall on what a classroom or job demands. Girls and women are less often the “can’t sit still” stereotype, so the report often arrives in adulthood, tangled with anxiety or a reputation for mess.
Origin
Clinical English, DSM. Portuguese and Spanish usually say TDAH. DSM-5 moved onset to before age 12 (it had been 7) and replaced subtypes with presentations. Adults need five symptoms in a cluster where children need six.
History
From the restless-child clinic to late adult diagnosis, when compensation (grades, masking) stopped covering the cost. Internet speech borrowed time blindness, RSD and hyperfocus as lived descriptions, not as a shortcut to a report.
How it emerged
There needed to be a short code for impairing attention and impulse that school had been calling spacey or badly brought up.
Usage examples
Her report says ADHD, inattentive presentation.
He still says ADD; the letter came back ADHD.
TDAH is the same diagnosis with a Portuguese or Spanish acronym.
Translations
- pt TDAH / transtorno do déficit de atenção com hiperatividade
- en ADHD / attention-deficit/hyperactivity disorder
- es TDAH / trastorno por déficit de atención con hiperactividad
Synonyms
- ADD
- attention deficit
- TDAH
- inattentive presentation
Acronyms
- ADHD
- TDAH
Related terms
Questions
What does ADHD mean?
Attention-deficit/hyperactivity disorder: a neurodevelopmental diagnosis of persistent inattention and/or hyperactivity-impulsivity, beginning in childhood and interfering at home, school or work.
Are TDAH and ADHD the same?
Yes. ADHD is the English acronym; TDAH is the usual form in Portuguese and Spanish (transtorno/trastorno do/por déficit de atenção/atención). Same diagnosis, different language on the letters.
Is ADD still a diagnosis?
In everyday speech, many people still use ADD for a mostly inattentive profile. Since the 1990s the official name has been ADHD, with a predominantly inattentive presentation — not a separate disorder.
Can you have ADHD without being hyper?
Yes. The predominantly inattentive presentation meets the inattention criteria without a motor that never sits down. That is the profile old ADD was trying to name, and the one most often missed in girls and women.
Does everyone have a bit of ADHD?
Everyone drifts or fidgets sometimes. A diagnosis asks for an old pattern (signs by age 12), in two or more settings, with real impairment. A quiz or a reel is not a clinical assessment.