adjective
underdeveloped
adjective
1
Not fully grown or matured.
"The premature baby had underdeveloped lungs."
2
Having a low level of economic or industrial development.
"Aid organizations focus much of their work in underdeveloped regions."
How to Use Underdeveloped
Learner’s notesIn plain EnglishNot grown or built up as far as it should or could be, whether physically or economically.
Word Forms
more underdeveloped comparative, most underdeveloped superlative
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The premature baby had _____ lungs.