IPA: /ˌʌndərdɪˈvɛləpt/
KK: /ʌndərdɪˈvɛlʌpt/
Not fully developed or lacking in growth, often referring to countries with low economic productivity or to immature plants.
Many underdeveloped regions struggle to provide basic services to their populations.
Underdeveloped → It is formed from "under-" (meaning below or insufficient) and "developed" (from Latin "developare", meaning to unfold or reveal). The word describes something that has not been sufficiently unfolded or matured, indicating a lack of development.
Think of something that is 'below' ('under-') the expected level of growth or maturity, which is what 'underdeveloped' signifies.