undeveloped

adjective

un·​de·​vel·​oped ˌən-di-ˈve-ləpt 

-dē-

: not developed : lacking in development

undeveloped natural resources

undeveloped potential

undeveloped film

undeveloped seeds

: such as

a

: not used for building, farming, industry, etc.

undeveloped land

an area of undeveloped wilderness

b

: having a relatively low level of industrialization and standard of living

undeveloped countries/nations

Examples of undeveloped in a Sentence

Recent Examples on the Web

The Northland, which has more undeveloped land and larger parcels available for new construction than other parts of Kansas City, has continued to produce opposition to the code from its council members. —David Hudnall, Kansas City Star, 8 Jan. 2026

Within the seeds are embryos — tiny, undeveloped plants. —Sheryl De Vore, Chicago Tribune, 6 Jan. 2026

The government plans to slash administrative costs by 20%, impose a 10% tax on local companies’ profits, and charge a levy on undeveloped land. —Dominic Dudley, semafor.com, 5 Jan. 2026

Much of Port Coquitlam is undeveloped. —David Frum, The Atlantic, 27 Dec. 2025

Word History

First Known Use

1736, in the meaning defined above

Rhymes for undeveloped

• underdeveloped
• developed
• enveloped
• redeveloped

Medical Definition

undeveloped

adjective

un·​de·​vel·​oped ˌən-di-ˈvel-əpt 

: lacking in development : not developed

physiologically undeveloped