A person who holds to a form of agnosticism, especially uncertainty of the existence of a deity.
Doubtful or uncertain about the existence or demonstrability of God or other deity.
Of a software component etc.: unaware or noncommittal regarding the specific nature of the components or input with which it interacts.
Of or relating to agnosticism or its adherents.
Having no firmly held opinions on an issue or matter of uncertainty.
Apostate.