Theological noncognitivism
Theological noncognitivism is the non-theist position that religious language, particularly theological terminology such as 'God', is not intelligible or meaningful, and thus sentences like 'God exists' are cognitively meaningless. This would also imply that sentences like the negation of 'God exists' or 'God does not exist' are likewise meaningless, i.e., neither true nor false.
Source: Wikipedia — Theological noncognitivism (CC BY-SA 4.0)