The quality or state of being factual; the condition of being based on or concerned with actual events and reality rather than imagination.
From factitious (Latin factitius) + -ity (Latin suffix forming abstract nouns). Adopted into philosophy and linguistics in the 20th century, especially in existentialism.
Existentialist philosophers like Heidegger loved this word — it describes the brute 'thereness' of reality, the fact that you're stuck being born into a world you didn't choose, with facts you can't escape.
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