అర్థం : So extremely old as seeming to belong to an earlier period.
							ఉదాహరణ : 
							A ramshackle antediluvian tenement.
							Antediluvian ideas.
							Archaic laws.
							
పర్యాయపదాలు : antediluvian, antiquated
అర్థం : Little evolved from or characteristic of an earlier ancestral type.
							ఉదాహరణ : 
							Archaic forms of life.
							Primitive mammals.
							The okapi is a short-necked primitive cousin of the giraffe.
							
పర్యాయపదాలు : primitive