untold

un|told /'ʌnt'oʊld/
1 [ADJ] ADJ n
You can use untold to emphasize how bad or unpleasant something is.
The demise of the industry has caused untold misery to thousands of hard-working tradesmen...
This might do untold damage to her health.
2 [ADJ] ADJ n
You can use untold to emphasize that an amount or quantity is very large, especially when you are not sure how large it is.
...the nation's untold millions of anglers.