agnosticism

noun

1. (countable, uncountable)The view that absolute truth or ultimate certainty is unattainable, especially regarding knowledge not based on experience or perceivable phenomena.
2. (countable, uncountable)The view that the existence of God or of all deities is unknown, unknowable, unproven, or unprovable.

   “Holonyms: epistemology, cosmology, ontology, philosophy”

3. (countable, uncountable)Doubt, uncertainty, or scepticism regarding the existence of a god or gods.

   “1956, January 31ˢᵗ: Alan Alexander Milne; quoted in:”

   “1988: James B. Simpson, Simpson’s Contemporary Quotations, № 4,393 (Houghton Mifflin, →ISBN The Old Testament is responsible for more atheism, agnosticism, disbelief — call it what you will — than any book ever written; it has emptied more churches than all the counterattractions of cinema, motor bicycle and golf course.”

4. (broadly, countable, uncountable)Doubt, uncertainty, or scepticism regarding any subject of dispute.