Find Synonyms
undated Synonyms
Another word for undated
Choosing another word for undated depends on context, so the 10 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• adjective (Context 1)
Not marked with or assigned a specific date; lacking a recorded date of creation, publication, or occurrence.
Usage Example
"The archivist discovered several dateless letters tucked inside the back cover of the nineteenth-century journal."
Strongest
dateless
• adjective (Context 2)
Not made obsolete or old-fashioned by the passage of time; remaining fresh and relevant.
Usage Example
"Her minimalist architectural designs have an timeless appeal that continues to inspire modern builders."
Strongest
timeless
ageless
Strong
classic
enduring
perennial
• adjective (Context 3)
Having a wavy surface or margin, especially in botany or heraldry.
Usage Example
"The specimen was identified by its broad, undulate leaves that rippled gently along the edges."
Strongest
undulate
wavy
Strong
sinuous
rippled
Opposites of undated
The opposite of undated shifts depending on context. Common opposites include:
dated
outdated
outmoded
old-fashioned
obsolete
straight
passé
flat
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Undated. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/undated