A term used to refer to someone with either an intellectual disability or, in a broader context, any condition that may pose problems in an educational setting, which can include non-behavioural or learning disorders, e.g., diabetes.
by Doc_B April 14, 2015

A relatively mild variant of autistic spectrum disorder (ASD), marked by a watered-down version of autistic symptoms (e.g., poor social skills and communication) but perfectly intact language and intellectual abilities, which may range from average to unmeasurable genius. It is often associated with high IQ as their need for logic and often above-average mathematical and scientific skills make them STEM graduates.
by Doc_B April 14, 2015

Someone who isn’t particularly-socially-inclined (at all) and only talks when they have to. Restrained, reticent.
Person A: ‘I tried milking a few personal musings out of him as he was filling out his insurance form but I might as well have been talking to a log of ice. Is he just naturally quite introverted or is there something up with him?’
Person B: ‘no, he’s actually quite outgoing but he has a tendency to be quite taciturn around people who’s not that familiar with. He doesn’t do small-talk or say any more than he absolutely has to around people he doesn’t know that well but he’s not especially-introverted, nor does he dislike you, per se (I doubt it). He probably just doesn’t care to get to know you better.’
Person B: ‘no, he’s actually quite outgoing but he has a tendency to be quite taciturn around people who’s not that familiar with. He doesn’t do small-talk or say any more than he absolutely has to around people he doesn’t know that well but he’s not especially-introverted, nor does he dislike you, per se (I doubt it). He probably just doesn’t care to get to know you better.’
by Doc_B August 15, 2022

The state of suffering a severe psychiatric disease which causes extremely abnormal behaviour or loss of touch with reality (psychosis), most commonly associated with schizophrenia and bipolar illness (the manic phase).
King George suffered from bouts of insanity.
by Doc_B April 13, 2015

Attention Deficit/Hyperactivity Disorder is a behavioural condition (typically of childhood, but can persist into adult life) marked by a cluster of symptoms, including: hyperactivity, distractability, inattention and fidgeting. It is diagnosed more frequently in boys than girls and most commonly treated with Ritalin.
by Doc_B April 16, 2015

A serious mental illness marked by violent and wild oscillations between extreme euphoria or irritability (mania) and deep depression. Although it is technically classified as a mood disorder, it is one of the few psychiatric conditions in which psychosis occurs; it is usually associated with severe manic states but profound depression may also cause delusions and hallucinations to emerge. The psychotic features are usually mood-congruent, e.g., believing oneself to be Jesus Christ and Lucifer for mania and depression respectively. It's an illness of extreme opposites in mood, thinking and energy levels and a severe mental disorder that, at least in its classic form, goes infinitely beyond what mentally healthy people experience and most certainly not to be trivialised. It is also worth noting that the mood swings associated with this disease are sustained and typically last weeks or months, years in the most extreme cases. Ultra-ultra rapid cycling (extreme mood shifts in a day) is exceedingly rare.
Bipolar affective disorder is a severe mental illness that in its most acute form is potentially worse than schizophrenia.
by Doc_B May 04, 2015

A form of severe mental disturbance marked by loss of contact with reality, as manifest by the presence of delusions (false beliefs) and hallucinations (e.g., hearing voices which do not exist). Usually associated with serious psychiatric illnesses, such as bipolar disorder and schizophrenia.
by Doc_B May 01, 2015
