different between unusualness vs unnaturalness

English

From unusual +? -ness.

unusualness (countable and uncountable, plural unusualnesses)

(uncountable) The condition or state of being unusual.
Synonyms: abnormality, remarkableness, weirdness; see also Thesaurus:strangeness
(countable) Something unusual; an aberration.
Synonyms: deviance, oddity, outlier; see also Thesaurus:anomaly

From Middle English unnaturelnesse, equivalent to unnatural +? -ness.

unnaturalness (countable and uncountable, plural unnaturalnesses)

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