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Synonyms

undeveloped

American  
[uhn-di-vel-uhpt] / ˌʌn dɪˈvɛl əpt /

adjective

  1. not developed.

undeveloped British  
/ ˌʌndɪˈvɛləpt /

adjective

  1. not having developed or been developed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of undeveloped

First recorded in 1730–40; un- 1 + develop + -ed 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Oakland was the first to implement one in 2019, when it began placing a $3,000 or $6,000 yearly tax on unoccupied residences as well as undeveloped lots.

From Los Angeles Times • Apr. 8, 2026

Barrick says it continues to believe in the long-term value of Reko Diq, which it estimates is one of the world’s largest undeveloped copper and gold projects.

From The Wall Street Journal • Apr. 6, 2026

The new Rokos School of Government is to be built on undeveloped land in the Cambridge West Innovation District, close to the university's science and technology departments.

From BBC • Mar. 31, 2026

A family cabin and some undeveloped land located in southern Missouri were placed into that trust.

From MarketWatch • Jan. 30, 2026

The soccer field is to the left of that, next to a stretch of undeveloped land.

From "Tangerine" by Edward Bloor

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.