This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Out of or being beyond the normal course of nature; differing from the natural.

adj. Surpassing the normal or usual; extraordinary: "Below his preternatural affability there is some acid and steel” ( George F. Will).

adj. Transcending the natural or material order; supernatural.

adj. Beyond or different from what is natural or according to the regular course of things; strange; inexplicable; extraordinary; abnormal.

adj. Having an existence outside of the natural world. In this sense, everything supernatural is also preternatural.

adj. Beyond of different from what is natural, or according to the regular course of things, but not clearly supernatural or miraculous; strange; inexplicable; extraordinary; uncommon; irregular; abnormal

Being beyond what is natural, or different from what is natural; extraordinary: being out of the regular or natural course of things: distinguished from supernatural, being above nature, and unnatural, being contrary to nature.

Synonyms Miraculous, etc. See supernatural.

adj. surpassing the ordinary or normal

adj. existing outside of or not in accordance with nature

"Conning back for these posts, it was no longer a stream, but more of a river of humanity, with everyone in preternatural good cheer."

extraordinary    supernatural   

normal   

unnatural    supernatural   

preternaturally   

supernatural    strange    inexplicable    extraordinary    uncommon    irregular    abnormal    nonnatural    uncanny   

supernatural    uncanny    superhuman    unwonted    unearthly    phenomenal    astound    exceptional    marvellous    inconceivable