intellectual disability

noun

: mild to severe impairment in intellectual ability equivalent to an IQ of 70 to 75 or below that is accompanied by significant limitations in social, practical, and conceptual skills (as in interpersonal communication, reasoning, or self-care) necessary for independent daily functioning and that has an onset before age 18

Note: The term intellectual disability is now preferred over mental retardation in medical, educational, and regulatory contexts, as well as in general use. The term mental retardation is increasingly considered offensive, though it was the dominant term into the second decade of the current century.

Examples of intellectual disability in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
About 1,000 children with intellectual disabilities from 26 states and Canada who ranged in age from 8 to 18 gathered at Soldier Field in Chicago to compete in 200 events. Kori Rumore, Chicago Tribune, 23 May 2026 Not all fetuses exposed to alcohol have birth defects or go on to develop intellectual disabilities, researchers say. Isabella Cueto, STAT, 19 May 2026 Noel, who had physical and intellectual disabilities, was reported missing in March 2023, months after he was last seen in the fall of 2022. Lillie Davidson, Fort Worth Star-Telegram, 15 May 2026 Colleges can create more paths for athletes with intellectual disabilities to compete and be part of athletic communities. Zoya Hasan, Forbes.com, 15 May 2026 See All Example Sentences for intellectual disability

Word History

First Known Use

1809, in the meaning defined above

Time Traveler
The first known use of intellectual disability was in 1809

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Cite this Entry

“Intellectual disability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intellectual%20disability. Accessed 23 May. 2026.

Kids Definition

intellectual disability

noun
: mild to severe impairment in intellectual ability accompanied by significant limitations in skills (as in communication, reasoning, or self-care) necessary for independent daily functioning

Medical Definition

intellectual disability

noun
: mild to severe impairment in intellectual ability equivalent to an IQ of 70 to 75 or below that is accompanied by significant limitations in social, practical, and conceptual skills (as in interpersonal communication, reasoning, or self-care) necessary for independent daily functioning and that has an onset before age 18

Note: The term intellectual disability is now preferred over mental retardation in medical, educational, and regulatory contexts, as well as in general use. The term mental retardation is increasingly considered offensive, though it was the dominant term into the second decade of the current century.

… Rosa's Law, which changed references in federal law from "mental retardation" to "intellectual disability" and references to a mentally retarded individual to an individual with an intellectual disability.Victor R. Martinez
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