agnosticism vs skepticism

agnosticism and skepticism both are nouns.

Word	Noun	Adjective	Verb	Adverb
agnosticism	Yes	No	No	No
skepticism	Yes	No	No	No

As nouns, agnosticism and skepticism are synonyms defined as:

agnosticism and skepticism: the disbelief in any claims of ultimate knowledge

Other synonyms of agnosticism include scepticism.

agnosticism (noun)	skepticism (noun)
the disbelief in any claims of ultimate knowledge	doubt about the truth of something
a religious orientation of doubt; a denial of ultimate knowledge of the existence of God	the disbelief in any claims of ultimate knowledge