Meaning : So extremely old as seeming to belong to an earlier period.
Example :
A ramshackle antediluvian tenement.
Antediluvian ideas.
Archaic laws.
Synonyms : antediluvian, archaic
Antiquated ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Antiquated ka matlab kya hota hai?