underdeveloped

adjective

un·​der·​de·​vel·​oped ˌən-dər-di-ˈve-ləpt How to pronounce underdeveloped (audio)
Synonyms of underdevelopednext
1
: not normally or adequately developed
underdeveloped muscles
underdeveloped film
2
: having a relatively low economic level of industrial production and standard of living (as from lack of capital)
underdeveloped nations
underdevelopment noun

Examples of underdeveloped in a Sentence

The baby was born with underdeveloped lungs.
Recent Examples on the Web
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The report also found a significant potential conflict of interest issue, regarding one of its board members, who owns underdeveloped property in the district. Theresa Clift, Sacbee.com, 26 June 2026 What is often misunderstood is that any of these virtuous behaviors can manifest as deficient vices when underdeveloped and as excess vices when strong but unsupported by the other 10 character dimensions, as evidenced by Steve Jobs. Mary Crossan, Forbes.com, 23 June 2026 Yet within that gap lies a major, underdeveloped opportunity. Sanda Ojiambo, Fortune, 23 June 2026 Strictly talking about the on-field outlook, Sorsby is a very talented, yet underdeveloped quarterback prospect. Dane Brugler, New York Times, 23 June 2026 See All Example Sentences for underdeveloped

Word History

First Known Use

1892, in the meaning defined at sense 1

Time Traveler
The first known use of underdeveloped was in 1892

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Cite this Entry

“Underdeveloped.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underdeveloped. Accessed 30 Jun. 2026.

Kids Definition

underdeveloped

adjective
un·​der·​de·​vel·​oped ˌən-dər-di-ˈvel-əpt How to pronounce underdeveloped (audio)
1
: not developed normally or enough
underdeveloped muscles
2
: having a low level of industrial production and standard of living
the underdeveloped nations

Medical Definition

underdeveloped

adjective
un·​der·​de·​vel·​oped ˌən-dər-di-ˈvel-əpt How to pronounce underdeveloped (audio)
: not normally or adequately developed
underdeveloped muscles
underdeveloped lungs

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