middle age

noun

Synonyms of middle agenext
: the period of life from about 45 to about 64
middle-aged adjective
middle-ager noun

Examples of middle age in a Sentence

as our generation approaches middle age The patient was in late middle age. He feared the approach of middle age.
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.
Many Americans think of it as late middle age. Daniel De Visé, USA Today, 4 Apr. 2026 Peet and Shear developed a strong creative chemistry, with her input shaping the script’s exploration of vulnerability, middle age and the complexities of Brooklyn life. Los Angeles Times, 2 Apr. 2026 Researchers found that adults with higher vitamin D levels at the start of the study had lower levels of tau protein on brain scans taken later in middle age, according to findings published in the journal Neurology Open Access. Emily Kay Votruba, EverydayHealth.com, 1 Apr. 2026 Gadiano worked in the fields off and on from childhood into middle age. Kerry Klein, NPR, 31 Mar. 2026 See All Example Sentences for middle age

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of middle age was in the 14th century

Browse Nearby Words

Cite this Entry

“Middle age.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/middle%20age. Accessed 10 Apr. 2026.

Kids Definition

middle age

noun
: the period of life from about 45 to about 64
middle-aged
ˌmid-ᵊl-ˈājd
adjective

Medical Definition

middle age

noun
mid·​dle age ˌmid-ᵊl-ˈāj How to pronounce middle age (audio)
: the period of life from about 45 to about 64 years of age
middle-aged adjective

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