Modifiers matching circumstances:

• exceptional,
• terrible,
• unforeseen,
• unpredictable,
• extraordinary,
• special,
• surrounding,
• unusual,
• bizarre,
• current,
• changing,
• personal,
• specified,
• limited,
• significant,
• external,
• historical,
• unplanned,
• extreme,
• social,
• bad,
• difficult,
• economic,
• clinical,
• serious,
• uncontrollable,
• individual,
• corporate,
• pathological,
• unexpected,
• practical,
• distressing,
• unfortunate,
• stressful,
• domestic,
• institutional,
• adverse,
• complicated,
• socioeconomic,
• catastrophic,
• tragic,
• dangerous,
• driving,
• financial,
• negative,
• evaluative,
• unavoidable,
• objective,
• unforeseeable,
• persistent,
• temporary,
• severe,
• harmful,
• rare,
• local,
• physical,
• unique,
• emotional,
• logical,
• medical,
• relevant,
• outside,
• contextual,
• good,
• environmental,
• under,
• operational,
• mundane,
• unanticipated,

Simple categories matching unforeseen:

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