In Russian culture agnosticism is somewhere between two chairs. Leo Tolstoy equated him with atheism. Ulyanov-Lenin blamed agnosticism for lack of radicalism and regarded him as an attempt to recognize that the divine principle exists in the universe, but his human mind can not know. In other the words: "both ours and yours".
Now in Russian society it is not fashionable to be an atheist, after the collapse of the USSR, almost all became Orthodox or agnostic, but replaced this philosopher's term with a more obscure term - "a person not religious but believing", while no one make a query, what beliefs on this person

Hello!
The prefix "a" indicates negation. And the word "gnostic" is related to knowledge, especially the esoteric mystical one. The junction of those terms gives a definition or concept of what would be "agnostic".
So, agnosticism is the view that the truthfulness of certain claims, such as the existence of the divine or the supernatural, is unknown or unknowable. To be agnostic is to believe in that idea.
From that philosophical view, an agnostic may be theist or atheist. Both think not to possess knowledge that proves the existence or not of any divinity. But the first presumes the possibility of that existence, while the second, the contrary.

Agnostic - it`s a person who doesn`t deny the thought that God may exist, but this person doesn`t follow any of religions.
As for me - I do know/feel that the great force exists, but I don`t see any sence in following the religious traditions (how many fingers to use during crossing oneself and so on).