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Synonyms for Dateless (same or very similar meaning)

WordNet sense 1 (having no known beginning and presumably no end):
endless, sempiternal

WordNet sense 2 (having no limits or boundaries in time or space or extent or magnitude):
infinite

WordNet sense 3 (not bearing a date):
undated

WordNet sense 4 (not capable of being given a date):
undatable

WordNet sense 5 (unaffected by time):
timeless

WordNet sense 6 (remaining in an original state):
unaltered, unchanged


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