unexplored depths
Unmapped deep places
Unexplored depths are parts of something—ocean, cave, psyche, subject—that remain unknown or uninvestigated.
The phrase suggests hidden vastness waiting to be discovered: The unexplored depths of the sea hold countless species, therapy revealed unexplored depths of resentment.
Often implies that what lies beneath the surface is more substantial than what's visible.
- abyssImmeasurably profound depth
- fathomlessImmeasurably deep or obscure
- unchartedNot yet documented
- terra incognitaUnexplored or unknown region
- the great unknownUndiscovered or unknowable realm
darkness · mystery · ocean · deep sea · ocean floor · cavern · trenches · subterranean · plunge · murky · hidden · lost world · bottomless · void · secrets · sunken treasure · diving · unknown
unexplored depthsknown quantities
Established, measurable factors
common knowledge · beaten track · open books · received wisdom · old hat
unexplored, depths, explore, explored, explorer, explorers, explores, exploring, exploration