Definition of underdeveloped
1
: not normally or adequately developed
underdeveloped muscles underdeveloped film
2
: having a relatively low economic level of industrial production and standard of living (as from lack of capital)
underdeveloped nations
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Merriam-Webster unabridged
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Time Traveler for underdeveloped
The first known use of underdeveloped was in 1892
See more words from the same year