Below are possible answers for the crossword clue Extremely old.
7 letter answer(s) to extremely old
ARCHAIC
little evolved from or characteristic of an earlier ancestral type; "archaic forms of life"; "primitive mammals"; "the okapi is a short-necked primitive cousin of the giraffe"
so extremely old as seeming to belong to an earlier period; "a ramshackle antediluvian tenement"; "antediluvian ideas"; "archaic laws"
11 letter answer(s) to extremely old
PREHISTORIC
belonging to or existing in times before recorded history; "prehistoric settlements"; "prehistoric peoples"
no longer fashionable; "my mother has these prehistoric ideas about proper clothes"
of or relating to times before written history; "prehistoric archeology"
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