The quality or state of being fortuitous; the characteristic of happening by chance or accident rather than design.
From 'fortuitous' (Latin 'fortuitus') plus the '-ness' suffix to create an abstract noun. This describes the general property of accidental occurrence.
Insurance companies love the word 'fortuitousness'—it's the legal boundary between a covered accident and a deliberate act. Whether your phone breaking was fortuitous (accidental) or intentional completely changes your warranty claim!
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