Modifiers matching circumstances:

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

Simple categories matching persistent:

• time,
• difficulty,
• symptom,
• condition,
• bacteria,
• disease,
• pollutant,
• headache,
• distress,
• instability,
• abnormality,
• pesticide,
• infection,
• material,
• organophosphate,
• herbicide,
• substance,
• complaint,
• chemical,
• virus,
• pathogen,
• illness,
• cause,
• dirt,
• event,
• substrate,
• pain,
• compound,
• problem,
• information,
• discomfort,
• aggression,
• matter,
• retrovirus,
• circumstances,
• upset,
• mineral,
• lesion,
• affliction,
• injury,
• insecticide,
• metal,
• disorder,
• volatile,
• contaminant,
• organism,
• state,
• consequence,