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

Into the Big Blue Twenty miles off Panama’s Pacific coast, the volcanic archipelago of Islas Secas spans 14 islands, 13 of them entirely undeveloped, in one of the most biodiverse stretches of ocean on the planet. —Ritu Upadhyay, Footwear News, 23 May 2026

But a vast portion of the site remains undeveloped. —Ishani Desai, Sacbee.com, 18 May 2026

Marco Island Adjacent to the Everglades National Park and nearly 100 miles of undeveloped islands, bays, and estuaries, Marco Island is a sheller's paradise. —Gabi De La Rosa, Southern Living, 17 May 2026

What to see today Unlike many cruise ports, Icy Strait Point feels remarkably undeveloped. —Josh Rivera, USA Today, 15 May 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