Intellectual disability is a developmental disability that is characterized by limitations in the intellectual ability and in the adaptive ability of the individual. Individual has impairments in their intellectual functions such as reasoning, problem-solving, planning, abstract thinking, judgement, academic learning and learning from experience.
The individual may have difficulty in performing everyday tasks, adhering to societal norms, and understanding social functioning. There are four levels of severity, profound, severe, moderate, and mild. The term Intellectual Disability was formerly known as ‘Mental Retardation’. Intellectual Disability is also known as ‘Intellectual and Developmental Disabilities’ (IDD).