They had seen a previous generation die in the wilderness as a result of unbelief.
From the kentucky.com
Twain's unbelief, for Mencken, was almost the fulfillment of his Americanness.
From the theatlantic.com
When a mediocre scholar hears the Tao, He wavers between belief and unbelief.
From the economist.com
If we have denied Him and refused to follow Him, we will be judged for our unbelief.
From the kansas.com
I can't imagine how belief or unbelief in a god would make any difference in my life.
From the economist.com
Jurists may conflate and confuse apostasy, blasphemy, hypocrisy, heresy, and unbelief.
From the en.wikipedia.org
These days the marketplace of belief and unbelief is highly competitive.
From the forbes.com
He disavows any wish to proselytize, caught as he is between his own belief and unbelief.
From the washingtonpost.com
The only thing that keeps people out of Christ's heaven is unbelief.
From the orlandosentinel.com
More examples
A rejection of belief
(unbelieving) atheistic: rejecting any belief in gods
(unbelieving) nescient: holding that only material phenomena can be known and knowledge of spiritual matters or ultimate causes is impossible
(unbelieving) disbelieving: denying or questioning the tenets of especially a religion; "a skeptical approach to the nature of miracles"
(UNBELIEVING) Those without the faith.
Ps 14:1-4 pp Ps 53:1-4 See also Job 21:15; Ro 3:11
The position of not believing a proposition. This is distinct from disbelief in that it does not assert that the proposition is false; rather, it merely states that there is no good reason to assert that it is true or false. ...