1. An area, region, or domain that has not been examined, explored, or studied in detail
The deep ocean remains largely an uninvestigated zone for marine biologists.
O oceano profundo permanece em grande parte uma zona não investigada para biólogos marinhos.
2. A subject matter or field of knowledge that lacks thorough research or analysis
The long-term effects of this substance represent an uninvestigated zone in medical science.
Os efeitos a longo prazo desta substância representam uma zona não investigada na ciência médica.