Found 2 items, similar to terra incognita.
English → English (WordNet) Definition: terra incognita terra incognita n : an unknown and unexplored region; “they came like angels out the unknown” [syn: unknown, unknown region]
English → English (gcide) Definition: Terra incognita Terra incognita \Ter"ra in*cog"ni*ta\ [L.] An unknown land; unexplored country. The enormous tracts lying outside China proper, still almost terr[ae] incognit[ae]. --A. R. Colquhoun. [Webster 1913 Suppl.]