archaic
1. [ adjective ] so extremely old as seeming to belong to an earlier period
Synonyms: antiquated antediluvian
Examples:

"a ramshackle antediluvian tenement" "antediluvian ideas" "archaic laws"

Related terms: old
2. [ adjective ] little evolved from or characteristic of an earlier ancestral type
Synonyms: primitive
Examples:

"archaic forms of life" "primitive mammals" "the okapi is a short-necked primitive cousin of the giraffe"

Related terms: early
Similar spelling:   archaistic
  archaicism
  archaize
  archaism
  archaise
  Arecaceae
  Arechiga
  Archeozoic