iç tarafları keşfedilmemiş kıta

listen to the pronunciation of iç tarafları keşfedilmemiş kıta
Турецкий язык - Английский Язык
terra incognita
By extension, ideas or concepts that have not yet been tried or explored

The concept of the unconscious or an inner terra incognita, an unknown country of the psyche that precedes and predicates the Cartesian subject, the focal point of rational consciousness, was a revolutionary idea.

Land that has never been explored or mapped; uncharted territory
An unknown land; unexplored country
an unknown and unexplored region; "they came like angels out the unknown"
land which is unknown or undiscovered