undemarcated
Adjective
Meaning
undemarcated (not comparable)
Not demarcated.
Examples
The undemarcated border with Sudan poses a problem for Eritrean external relations. citation After a high-level delegation to the Sudan from the Eritrean Ministry of Foreign Affairs ties are being normalized.
Since 1996 both governments have remained wary of one another but relations are relatively normal. citation The undemarcated border with Ethiopia is the primary external issue facing Eritrea.