marked by the characteristics of an earlier period; antiquated

an archaic manner; an archaic notion.

(of a linguistic form) commonly used in an earlier time but rare in present-day usage except to suggest the older time, as in religious rituals or historical novels. Examples

thou; wast; methinks; forsooth.

forming the earliest stage; prior to full development

the archaic period of psychoanalytic research.

( often initial capital letter ) pertaining to or designating the style of the fine arts, esp. painting and sculpture, developed in Greece from the middle 7th to the early 5th century b.c., chiefly characterized by an increased emphasis on the human figure in action, naturalistic proportions and anatomical structure, simplicity of volumes, forms, or design, and the evolution of a definitive style for the narrative treatment of subject matter. Compare classical ( def. 6 ) , Hellenistic ( def. 5 ) .

primitive; ancient; old

an archaic form of animal life.

adjective

current , modern , new , present , young

adjective

ancient , antiquated , antique , bygone , obsolete , olden , old-fashioned , outmoded , out of date , pass , primitive , superannuated , age-old , antediluvian , hoary , old-time , timeworn , venerable , dated , dowdy , fusty , old , outdated , out-of-date , vintage , historic , passe