Deist, n.
Etymology: [L. deus god: cf. F. déiste. See Deity.]
One who believes in the existence of a God, but denies revealed religion; a freethinker.
Note: A deist, as denying a revelation, is opposed to a Christian; as, opposed to the denier of a God, whether atheist or patheist, a deist is generally denominated theist. Latham.
Syn. -- See Infidel.
Shades of meaning
Fernald has no entry of its own for deist; he lists it under skeptic.
Where he writes about it:
The atheist denies that there is a God; the deist admits the existence of God, but denies that the Christian Scriptures are a revelation from him; the agnostic denies either that we do know or that we can know whether there is a God. — from skeptic