rare events
Once-in-a-lifetime occurrences
Rare events are occurrences that happen infrequently or with low probability.
The term appears in statistics, risk assessment, and insurance, where predicting uncommon outcomes matters greatly: The model struggles to predict rare events like earthquakes.
In everyday use, rare events are simply things that don't happen often: Seeing him at a party is a rare event.
- anomalyDeparture from the expected
- outlierDistant data point
- miracleSupernatural occurrence beyond explanation
- flukeChance stroke of luck
- freak accidentRare, unpredictable calamity
coincidence · freak · aberration · exception · perfect storm · lightning · eclipse · unicorn · black swan · tail risk · phenomenon · occurrence · improbable · unlikely · long shot · needle in a haystack · once · singular
- tail distributionslong tail, long tails, tail risk, power law
rare eventsroutine
Regular sequence of actions
business as usual · the usual · foregone conclusions · certainties
rare, rarer, rarest, rarely, rareness, rarity, rarefied, rarefy, rarefaction