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

Greenland Mines, meanwhile, is a natural resources company working on the Skaergaard Project, which ranks among the world’s largest undeveloped palladium, gold and platinum deposits. — Sam Meredith, CNBC, 21 Sep. 2026

Known as the Seyler House, the 1922 Spanish Colonial Revival estate was commissioned by Charles Seyler and was among the first private homes built in the foothills above Los Feliz, back when the area was still largely undeveloped. — Abby Montanez, Robb Report, 18 Sep. 2026

Engine 39’s three-person crew includes a paramedic and can also staff a wildland fire engine, giving the department additional capacity to respond to wildfires near open and undeveloped land along the city’s eastern and southern flanks, Lawlor said. — Haley Parsley, Sacbee.com, 8 Sep. 2026

The company had sent heavy machinery to the site, an undeveloped valley in northeast Independence, a month earlier to start tilling the earth and digging runoff ponds. — Ilana Arougheti, Kansas City Star, 2 Sep. 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