The phrase "as undiscovered" is correct and usable in written English.
It can be used to describe something that has not yet been found or explored, often in contexts related to science, exploration, or knowledge.
Example: "The depths of the ocean remain as undiscovered territories, holding secrets yet to be revealed."
Alternatives: "as yet uncharted" or "still unexplored".
His assumption was that at least one other contaminated letter was still out there, undiscovered -- as undiscovered as who is behind the bioterrorism.
But Buddy TV did some digging and discovered that Marty may not be quite as "undiscovered" as advertised.
To develop better defences for its clients' computer systems, HP, an American giant, has spent more than $7m since 2005 buying hundreds of "zero days", as undiscovered exploits are also known in hacker slang.
Don't miss the grimly hilarious "The Couple in the Cage," from 1993, in which Fusco and a partner lampoon colonialism by posing as undiscovered natives of a forgotten island, only to discover that passersby and media outlets believed the hoax was for real.
If there is a large excess of uninfected females, this suggests that there are other factors biasing the sex ratio, such as undiscovered male-killers.
The disadvantage of this method is that new immunogens, such as undiscovered mutated proteins that may not be present in current databases, cannot be discovered using these microarrays.
Although the biological relevance of HHRz activity in most of these organisms remains unknown, its high conservation suggests as-yet undiscovered functions as a noncoding RNA regulator.
(The superpartner of the as yet undiscovered Higgs would be a Higgsino).
The most favored candidates for its identity are as yet undiscovered particles known as WIMPs — weakly interacting massive particles — left over from the Big Bang.
And it may have as yet undiscovered defense strategies up its sleeve: a quarter of its genes have never been seen in any other organism.
But asked if he thought there might be other backlogs lying as yet undiscovered, he replied: "There are a lot of areas that I have yet to inspect".
