Simple categories matching unforeseeable:

• condition,
• circumstance,
• situation,
• event,
• cause,
• catastrophe,
• risk,
• development,
• incident,
• disturbance,
• reason,
• change,
• calamity,
• circumstances,
• occurrence,
• thing,
• disaster,
• contingency,
• inactivity,
• setback,

Members with property unforeseeable:

• surge,
• sars,
• weather_emergency,
• flood,
• fire,
• car_wreck,
• accident,
• smoke,
• earthquake,
• safety_issue,
• strike,
• natural_disaster,
• theft,
• threat,
• water_seepage,
• civil_war,
• emergency,
• road,
• hardware_failure,
• water_damage,
• embargo,
• maintenance,
• major_war,
• wind,
• demographic_shift,
• death,
• war,
• currency_fluctuation,
• government_regulation,
• demonstration,
• computer_failure,
• premature_birth,
• horrific_case,
• illness,
• spousal_death,
• traffic_accident,
• terms,
• unforeseen_shutdown,
• bankruptcy,
• sewage_damage,
• total_disability,
• homicide,
• devaluation,
• loss,
• job_loss,
• natural_flood,
• famine,
• road_condition,
• medical_issue,
• case,
• economic_reason,
• burglary,
• automobile_accident,
• military_conflict,
• heat,
• sudden_death,
• blackout,
• temperature,
• sudden_change,
• major_fire,
• rail_accident,
• lightning_strike,
• condom_breakage,
• store_opening,
• trip,
• new_ownership,
• casualty,
• authority_action,
• natural_catastrophe,
• desertion,
• september-11_attack,
• late_payment,
• business,
• pipe_failure,
• injury,
• car_accident,
• disaster,
• industrial_dispute,
• import_ban,
• market_collapse,
• emergency_disaster,
• technological_change,
• revolution,
• labor_strike,
• breakdown,
• divorce,
• sexual_assault,
• large_winnings,
• roof_leak,
• machine_breakdown,
• tsunami,
• vehicular_mishap,
• mechanical_failure,
• serious_illness,
• storm,
• market_downturn,
• bull_failure,
• runoff,
• business_travel,
• hail,
• sudden_war,
• interruption,
• owner_death,
• trauma,
• lockout,
• operator_illness,
• foot,
• mouth,
• epidemic,
• climatic_irregularity,
• international_crisis,
• slip,