5 entries under occurrence topic. ×

7
unexpected event(expression, event, happening, incident)
4
force majeure circumstance(expression, event, case, possibility)
3
unanticipated event(expression, event, happening, incident)
3
unforeseen event(expression, event, happening, incident)
3
unforseen event(expression, event, happening, incident)
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APASmart Define. (1970). unforeseen circumstance thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unforeseen_circumstance/thesaurus/synonyms
ChicagoSmart Define. 1970. "unforeseen circumstance thesaurus" https://smartdefine.org/unforeseen_circumstance/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 1970, unforeseen circumstance thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unforeseen_circumstance/thesaurus/synonyms>.
MLASmart Define. "unforeseen circumstance thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/unforeseen_circumstance/thesaurus/synonyms>