Very old ( Informal ) (11)
I believe the answer is:
prehistoric
(Other definitions for prehistoric that I've seen before include "Extremely old" , "Before written records" , "Ancient" , "very early" , "Very old or out of date" .)
I believe the answer is:
prehistoric
(Other definitions for prehistoric that I've seen before include "Extremely old" , "Before written records" , "Ancient" , "very early" , "Very old or out of date" .)