[UN-2 4.] trans. To give up belief in; to discard or abandon (belief).

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1605.  Daniel, Queen’s Arcadia, V. iv. (1606), Kiij. How were I cleer’d of griefe, Had I the power to vnbeleeue beliefe.

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1795.  Paine, Age of Reason, II. 8. To believe therefore the Bible to be true, we must unbelieve all our belief in the moral justice of God.

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1837.  Ht. Martineau, Soc. Amer., II. 38, note. You know nothing of those people. They will believe everything, and unbelieve nothing.

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