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.
Their data included over 262,000 children assessed for autism, over 335,000 for ADHD and over 406,000 for an intellectual disability. Kimberlee Speakman, PEOPLE, 18 Jan. 2026 Researchers conducted a systematic review of numerous studies that looked at links between use of the pain reliever and autism, intellectual disabilities and attention-deficit/hyperactivity disorder. Bloomberg News, Boston Herald, 17 Jan. 2026 Acetaminophen use during pregnancy is not likely to raise the risk of having a child with autism, ADHD, or intellectual disability, according to a new study published Friday. O. Rose Broderick, STAT, 16 Jan. 2026 The researchers found no evidence that acetaminophen use during pregnancy increases the risk of autism, attention-deficit/hyperactivity disorder or intellectual disability among children. Jacqueline Howard, CNN Money, 16 Jan. 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 29 Jan. 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
Last Updated: - Updated example sentences
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