Modifiers matching occurrence:

• temporary,
• costly,
• natural,
• geographical,
• unforeseen,
• unusual,
• disruptive,
• unexpected,
• inanimate,
• ordinary,
• devastating,
• dangerous,
• specified,
• annual,
• deadly,
• organizational,
• planned,
• unlikely,
• miscellaneous,
• local,
• serious,
• elemental,
• seismic,
• unpredictable,
• unfortunate,
• autonomic,
• physical,
• unique,
• cosmic,
• hazardous,
• sudden,
• external,
• catastrophic,
• environmental,
• localised,
• supernatural,
• happy,
• awesome,
• geologic,
• harmful,
• severe,
• significant,
• unanticipated,
• tragic,
• unpleasant,
• extreme,
• periodic,
• meaningful,
• operational,
• recent,
• medical,
• seasonal,
• interesting,
• motivational,
• terrifying,
• undesirable,
• social,
• exogenous,
• musical,
• common,
• irregular,
• random,
• normal,
• positive,
• extraordinary,
• interactive,
• climatic,
• everyday,
• dramatic,
• superficial,
• damaging,
• strange,
• transient,
• internal,
• cataclysmic,
• possible,
• untoward,
• deviant,
• neurologic,
• historical,
• special,
• small,
• unavoidable,
• relevant,
• stressful,
• negative,
• unforeseeable,
• routine,
• accidental,
• future,
• single,
• outside,
• weather,
• abnormal,
• criminal,
• uncertain,
• outdoor,
• neurological,
• unplanned,
• traumatic,
• unwanted,
• adverse,
• benign,
• infrequent,
• discrete,
• acoustic,
• rare,
• political,
• major,
• commonplace,
• odd,
• disastrous,
• corporeal,
• dynamic,
• spontaneous,
• violent,
• astronomical,
• simple,
• exceptional,

Simple categories matching unforeseen:

• catastrophe,
• circumstances,
• force,
• event,
• emergency,
• expense,
• misfortune,
• weather,
• situation,
• work,
• charge,
• incident,
• disturbance,
• crisis,
• occurrence,
• consequence,
• disaster,
• accident,
• development,
• hazard,
• eventuality,
• condition,
• case,
• expenditure,
• calamity,
• contingency,
• trouble,
• difficulty,
• problem,
• circumstance,
• setback,
• adversity,
• thing,
• shock,
• cataclysm,
• happening,