underdeveloped
US /ˌʌn.də.dɚˈvel.əpt/
UK /ˌʌn.də.dɚˈvel.əpt/

1.
onderontwikkeld, onvolgroeid
not fully developed or grown; immature
:
•
The plant's roots were underdeveloped due to poor soil conditions.
De wortels van de plant waren onderontwikkeld door slechte bodemomstandigheden.
•
His social skills are still quite underdeveloped.
Zijn sociale vaardigheden zijn nogal onderontwikkeld.
2.
onderontwikkeld
(of a country or region) not having a high level of economic development
:
•
Many underdeveloped countries struggle with poverty and lack of infrastructure.
Veel onderontwikkelde landen kampen met armoede en gebrek aan infrastructuur.
•
The government is implementing policies to help underdeveloped regions.
De regering implementeert beleid om onderontwikkelde regio's te helpen.