"undeveloped" in the adjective sense
1. undeveloped
not developed, mature, or fully formulated
"courses in interior design were rare and undeveloped"
"undeveloped social awareness"
2. unexploited, undeveloped
not developed, improved, exploited or used
"vast unexploited (or undeveloped) natural resources"
"taxes on undeveloped lots are low"
Source: WordNet® (An amazing lexical database of English)
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