prehistoric

As adjectives the difference between perennial and prehistoric

is that perennial is lasting or remaining active throughout the year, or all the time while prehistoric is prehistoric.

As a noun perennial

is a perennial plant; a plant that is active throughout the year or survives for more than two growing seasons compare (annual), (biennial).

As adjectives the difference between protohistoric and prehistoric

is that protohistoric is of or pertaining to protohistory while prehistoric is prehistoric.

As adjectives the difference between prehistoric and undefined

is that prehistoric is prehistoric while undefined is lacking a definition or value.

As adjectives the difference between prehistoric and primordial

is that prehistoric is prehistoric while primordial is first, earliest or original.

As a noun primordial is

a first principle or element.

As an adjective prehistoric

is prehistoric.

As a noun old is

age.

As adjectives the difference between prehistoric and antique

is that prehistoric is of relating to the epoch before written record while antique is old, used especially of furniture and household items; out of date.

As a noun antique is

an old piece of furniture, household item, or other similar item.

As a verb antique is

to shop for antiques; to search for antiques.

As adjectives the difference between prehistoric and contemporary

is that prehistoric is prehistoric while contemporary is from the same time period, coexistent in time.

As a noun contemporary is

someone or something living at the same time, or of roughly the same age as another.

As a noun prehistorian

is a student of, or expert in prehistory.

As an adjective prehistoric is

of relating to the epoch before written record.

As a verb foretold

is simple past of foretell.

As an adjective prehistoric is

of relating to the epoch before written record.

As adjectives the difference between ancient and prehistoric

is that ancient is having lasted from a remote period; having been of long duration; of great age; very old while prehistoric is of relating to the epoch before written record.

As a noun ancient

is a person who is very old.