1 (of something written) without the day, month, and year on it:
an undated letter
3 (of a bond or other investment) not having a date at which it can be redeemed (= exchanged for cash):
Although undated, internal evidence suggests a date of c. 1400.
Deviations from the figures appearing in table 1 are due to the exclusion of undated references.
Most of the materials are undated except for reign period.
Almost all cantatas survive in manuscript, and the vast majority of them are undated.
The presence of (undated) 'enriched' basalts within the metamorphic sole is intriguing.
His letters are often undated and only his sermons have recently received a scholarly modern edition.
The short essay is undated, but probably originates from c. 1934/5.
Thus, the undated reference unfortunately begs the issue of tourists potentially causing impacts, and whether such impacts may be direct or cumulative.
