underdeveloped

American  

[uhn-der-di-vel-uhpt] / ˌʌn dər dɪˈvɛl əpt /

adjective

1. improperly or insufficiently developed.

2. Photography. (of a negative) less developed than is normal, so as to produce a relatively dark positive lacking in contrast.

3. developing.

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underdeveloped British  

/ ˌʌndədɪˈvɛləpt /

adjective

1. immature or undersized

2. relating to societies in which both the surplus capital and the social organization necessary to advance are lacking

3. photog (of a film, plate, or print) processed in developer for less than the required time, thus lacking in contrast

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Etymology

Origin of underdeveloped

First recorded in 1890–95; under- + develop + -ed ²

Example Sentences

See Examples For:

underdeveloped

Confidence estimates are also lower for underdeveloped parts of the world, where a lack of consistent, long-term records limits attribution science's reach.

From Barron's ● Jul. 16, 2026

In her social media plea at the time, Phillips said she was born with an underdeveloped kidney.

From Los Angeles Times ● Jul. 8, 2026

It only takes one attention-grabbing and theologically underdeveloped topic for these competing incentives to create drama.

From Slate ● Jun. 8, 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

“Your police department—others as well—may have retired, very probably have retired, authentic humans with underdeveloped empathic ability, such as my innocent niece here. Your position, Mr. Deckard, is extremely bad morally. Ours isn’t.”

From "Do Androids Dream of Electric Sheep?" by Philip K. Dick

Related Words

• embryonic
• nascent
• undeveloped