Not able to be dated or assigned a date.

तारीख नहीं लगाई जा सकती

English Usage: The ancient artifact was considered undatable due to its worn condition.

Hindi Usage: प्राचीन कलाकृति को उसकी खराब स्थिति के कारण तारीख नहीं लगाई जा सकती माना गया।