intellectual disability

noun intellectual disabilities · ID

1. Any disability that affects the intellect or cognitive ability of a person. It is claimed that 20 per cent of children will have an intellectual disability at some time in their lives, which may result from medical problems, sensory impairments, hysical disabilities, emotional and behavioural difficulties, language impairments, or specific learning problems such as dyslexia
2. specifically, usually An IQ below 70 or a severely below average ability to reason and to develop basic living skills.