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

For the most peaceful stretch, head to Opal Beach in Gulf Islands National Seashore, where the shoreline remains undeveloped, and the loudest sound is usually the surf. —Carrie Honaker, Travel + Leisure, 8 Mar. 2026

Both Hopewell Elementary and the home of the district’s LEAD Innovation Studio were ultimately constructed on the ground, but the district still owns around 150 acres of undeveloped land in the forest. —Jenna Ebbers, Kansas City Star, 6 Mar. 2026

Stonestreet, who played Ferguson's husband across Modern Family's series run, has discussed the undeveloped spinoff centered around their Cameron Tucker (Stonestreet) and Mitchell Pritchett (Ferguson) characters. —Ryan Coleman, Entertainment Weekly, 5 Mar. 2026

The island is still home to oaks covered in Spanish moss, unpaved roads, undeveloped beaches and marshes. —Anna Grace Lee, Vogue, 5 Mar. 2026

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