a. rare. [f. L. contingent-em CONTINGENT + -AL.] Of contingent nature, non-essential; as sb. a non-essential.

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1647.  M. Hudson, Div. Right Govt., II. x. 157. They cannot be ranged amongst the Essentials, but onely the Contingentials of Politick Government.

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1865.  J. Grote, Explor. Philos., I. 75. The difference between the necessary and the contingent (using this latter term of what we know to be fact—to avoid ambiguity, it might be better to call it contingential).

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  Hence Contingentialness.

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1865.  J. Grote, Explor. Philos., I. 80. Contingentialness is in substance the notion of a thing existing as fact.

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