adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Not marked with a date. not-comparable
2. 2
   Rising and falling in waves toward the margin, as a leaf; waved.
3. 3
   Not out of fashion. not-comparable

Adjective

1. 1
   not bearing a date wordnet

Synonyms

All synonyms

nondateddatelessundatable

Antonyms

All antonyms

dated

Example

More examples

"An undated photo shows a shadowy shape that some people say is the Loch Ness monster in Scotland."

Etymology

Etymology 1

From un- + dated.

Etymology 2

From Latin undatus, past participle of undare (“to rise in waves, to wave, to undulate”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.