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Definitions

underdeveloped

[uhn-der-di-vel-uhpt] / ˌʌn dər dɪˈvɛl əpt /
ADJECTIVE
(of a country) developing
Synonyms
Antonyms


ADJECTIVE
not fully developed
Synonyms
Antonyms
ADJECTIVE
not developed
Synonyms
Antonyms


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.

“There are several aspects of the revised application that are unclear or underdeveloped and require supplementation,” the board said.

From The Wall Street Journal • May 28, 2026

For him, there's a strong neurological factor – young men's attitude to sports, money, and prediction markets is down to what he describes as "an underdeveloped pre-frontal cortex and a high appetite for risk".

From BBC • May 21, 2026

According to her Instagram post, Phillips was born with an underdeveloped kidney.

From Los Angeles Times • Feb. 11, 2026

Brazil tilts more toward financials and commodities—it is one of the world’s major sources of iron ore, and has vast, underdeveloped rare-earth deposits.

From Barron's • Feb. 6, 2026

“We think it’s possible that it’s underdeveloped, like an infant’s.”

From "Everything, Everything" by Nicola Yoon




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