Agnostic

Noun

 * 1) A person who holds to a form of agnosticism, especially uncertainty of the existence of a deity.

Adjective

 * 1) Of or relating to agnosticism or its adherents.
 * His agnostic viewpoint is summarized in his book.
 * 1) Doubtful or uncertain about the existence or demonstrability of God or other deity.
 * She left the church when she became agnostic.
 * 1)  A software component (or other entity) that is unaware or noncommittal regarding the specific nature of the components with which it interacts; polymorphic; modular; pluggable
 * The socket communications layer is agnostic with regard to its underlying transport mechanism -- it is “transport-agnostic”.
 * 1)  Having no firmly held opinions on an issue or matter of uncertainty.
 * I'm agnostic on whether ethanol is a green fuel
 * He says he's agnostic concerning the Secretary's claims.

Thesaurus
Humean; Humist; Pyrrhonic; Pyrrhonist; ambiguous; capricious; chancy; changeable; dicey; distrustful; doubter; doubtful; doubting; doubting Thomas; dubious; dubitante; equivocal; erratic; fickle; from Missouri; hesitant; hesitating; in doubt; incalculable; incredulous; indecisive; indemonstrable; irresolute; leery; mistrustful; mistrusting; polysemous; questioning; scoffer; scrupulous; shy; skeptic; skeptical; suspecting; suspicious; touch-and-go; unaccountable; uncertain; unconfirmable; unconvinced; undivinable; unforeseeable; unpersuaded; unpredictable; unprovable; unsure; untrusting; unverifiable; variable; wary; wavering; whimsical

Related terms

 * agnosticism
 * gnostic
 * ignosticism