Untold millennia Synonyms

We can't find synonyms for the phrase "Untold millennia", but we have synonyms for terms, you can combine them.

Untold Synonyms

Millennia Synonyms

UM abbreviation

UM is an abbreviation for Untold Millennia

What does UM stand for?

UM stands for "Untold Millennia"

Definitions for Untold

(adjective) too many to be counted
(adjective) of an incalculable amount