INCREDIBILITY
Source: 566, 567
incredibility. Incredibility, n. an incredible state or quality
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In‐cred′i‐bil″i‐ty (?), n. [[L. incredibilitas: cf. F. incrédibilité.]] 1. 1. The quality or state of being incredible; incredibleness. Dryden.
2. 2. That which is incredible. Johnson.