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Definitions

undeveloped

[uhn-di-vel-uhpt] / ˌʌn dɪˈvɛl əpt /
ADJECTIVE
immature
Synonyms
STRONGEST
backward primitive underdeveloped
WEAK
abortive behindhand embryonic half-baked ignored inchoate incipient inexperienced latent potential primordial unactualized unevolved unprogressive untaught untrained
Antonyms
WEAK
adult developed grown mature

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

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

We also own an undeveloped adjoining lot worth $80,000.

From MarketWatch • Feb. 27, 2026

Venezuela also has undeveloped reserves of rare-earth metals, wrote Fundstrat’s Kent Fung on Monday.

From Barron's • Jan. 5, 2026

I am not a conservative, but one matures and regards some of the views of one’s youth as undeveloped and callow.

From "Long Walk to Freedom" by Nelson Mandela