Lack of belief or faith, especially in religious matters.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "unbelief" in a sentence
"There are times when the word unbelief is used to describe the doubts of those who are definitely believers but only when they are at a stage of doubting which is rationally inexcusable and well on the way to becoming full-grown unbelief e.g."
"Applying this general rule to the particular case that Paul has before him, the reason why the unworthy, undeserving, ill-deserving Gentiles are called, and grafted into the church, while the greatest part of the Jews are left to perish in unbelief, is not because those Gentiles were better deserving or better disposed for such a favour, but because of God's free grace that made that difference."
"This may be logical, but it is not the truth: it seems to me that it is really distrust, incurable doubt of the future, a sense of the justice but not of the goodness of God -- in short, unbelief, which is my misfortune and my sin."