1. So extremely old as seeming to belong to an earlier period
   "archaic laws"
   - antediluvian, antiquated 
2. Little evolved from or characteristic of an earlier ancestral type
   "archaic forms of life"
   - primitive

See also: early, old

Encyclopedia: Archaic

• B-scan ultrasonography
• B-side
• B. B. King
• B. F. Skinner
• B.O.
• B.Th.U.
• B2B
• B2C
• Ba
• baa
• baa-lamb
• Baader-Meinhof Gang
• Baal
• Baal Merodach
• baas
• baba
• baba au rhum
• babacu oil
• Babar
• babassu
• babassu nut
• babassu oil
• babassu palm
• babbitt
• Babbitt metal