not knowable; that cannot be known; specif., beyond the range of human comprehension or experience
Impossible to know, especially being beyond the range of human experience or understanding: the unknowable mysteries of life.
- un·know′a·bil′i·ty un·know′a·ble·ness
(comparative more unknowable, superlative most unknowable)
- Not knowable.
- Something that cannot be known.
From un- +"Ž know +"Ž -able.