undated
Lacking time notation
Undated means lacking a date.
An undated photograph or letter has no indication of when it was created.
An undated check has no date written on it.
The word sometimes describes things deliberately left without dates—an undated résumé conceals when degrees were earned.
Having no visible identification
- unstampedWithout postal marking
- blankWithout marks or content
- undeterminedNot yet established
- unknownNot yet discovered
unfixed · open-ended · undefined · unestablished · unsettled · undocumented · unrecorded · unnumbered
Lasting without end
- agelessWithout apparent deterioration
- perpetualLasting without interruption
- everlastingLasting for all time
- classicOf lasting excellence
timeless · enduring · immortal · perennial · time-honored · unchanging · constant · abiding
Before documented civilization
- archaeologicalOf studying ancient remains
- fossilsPreserved ancient organism traces
- artifactsHuman-made historical objects
- antiquityGreat age, ancient era
ruins · relics · primordial · archaic · primal · ancestral · medieval · historical
Of the present age
- currentDirected flow of charge
- recentOf the near past
- present-dayOf this era
- ongoingIn progress now
relevant · fresh · pertinent · applicable · continuing · undiminished · prevailing · sustained
unmarked
Having no visible identification
- unstampedWithout postal marking
- blankWithout marks or content
- undeterminedNot yet established
unknown · unfixed · open-ended · undefined · unestablished · unsettled · undocumented · unrecorded · unnumbered · unlabeled
eternal
Lasting without end
- agelessWithout apparent deterioration
- perpetualLasting without interruption
- everlastingLasting for all time
classic · timeless · enduring · immortal · perennial · time-honored · unchanging · constant · abiding · lasting
prehistoric
Before documented civilization
- archaeologicalOf studying ancient remains
- fossilsPreserved ancient organism traces
- artifactsHuman-made historical objects
antiquity · ruins · relics · primordial · archaic · primal · ancestral · medieval · historical · origin
contemporary
Of the present age
- currentDirected flow of charge
- recentOf the near past
- present-dayOf this era
ongoing · relevant · fresh · pertinent · applicable · continuing · undiminished · prevailing · sustained · persistent
undateddated
Old-fashioned or courted
timestamped · datable · postmarked · dateable · hallmarked