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

Unfortunately, six-foot-tall brush is growing in undeveloped lots nearby. —Ingfei Chen, New Yorker, 22 Oct. 2025

The mountain town is set in the shadow of Mount Sopris, a towering, almost-13,000-foot peak, and it's located between two scenic rivers—the Roaring Fork and Crystal River, the latter of which is also home to the undeveloped Penny Hot Springs. —Evie Carrick, Travel + Leisure, 21 Oct. 2025

Coming to terms with that change has been challenging for those who tirelessly fought for People’s Park to remain undeveloped. —Sierra Lopez, Mercury News, 16 Oct. 2025

The Sacramento County Assessor reports the undeveloped land’s value at $25,036,185. —Graham Womack, Sacbee.com, 16 Oct. 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