unimaginability

uncountable usually

(philosophy) The quality of being unimaginable.

Japanese Meaning

想像しがたい性質 / 想像しがたさ / 想像不可能性

Philosophers debated the unimaginability of a reality in which consciousness had no boundaries.

哲学者たちは、意識に境界がない現実の想像不可能性について議論した。

Sense（1）

(philosophy) The quality of being unimaginable.

For such propositions unimaginability looks like a function of a kind of conceptual impossibility.

unimaginabilities

（ plural ）