Simple categories matching untoward:

• reaction,
• incident,
• symptom,
• passion,
• event,
• occurrence,
• happening,

Members with property untoward:

• death,
• accident,
• theft,
• hangover,
• lump,
• spillage,
• dizziness,
• major_emergency,
• rash,
• demurrage,
• patient_injury,
• stroke,
• fire,
• vomiting,
• retirement,
• withdrawal_headache,
• cabg,
• pancreatitis,
• assault,
• fall,
• diarrhea,
• clinical_emergency,
• hospitalization,
• injury,
• nausea,
• drug_use,
• cancellation,
• loss,
• adverse_outcome,
• driving_accident,
• motor-vehicle_accident,
• tsunami,
• attempt,
• arterial_damage,
• internal_disaster,
• small_clash,
• crisis,
• hate,
• color_change,
• local_swelling,
• stock-market_crash,
• febrile_reaction,
• minor_leak,
• complication,
• convulsion,
• reverse,
• discontinuation_reaction,
• cardiovascular_event,
• cardiopulmonary_arrest,
• leakage,
• explosion,
• shooting,
• suspicious_death,
• pilferage,
• car_accident,
• major_incident,
• abscess,
• collision,
• business_failure,
• clash,
• wild_fire,
• hiccup,
• horror,
• natural_calamity,
• damage,
• abdominal_pain,
• allergic_reaction,
• serious_violence,
• poor_acceptance,
• lawsuit,
• outbreak,
• anaphylactic_reaction,
• headache,
• hallucination,
• leak,
• homicide,
• numbness,
• pulmonary_edema,
• needle_stick,
• violence,
• bladder_spasm,
• pain,
• palpitation,
• respiratory_depression,
• divorce,
• colic,
• instance,
• flood,
• intense_headache,
• overflow,
• arson,
• movement,
• vandalism,
• fever,
• subjective_assessment,
• delay,
• increase,
• spark,
• machinery_breakdown,
• note_event,
• unexpected_diarrhea,
• suicide,
• war,
• sacrifice,
• complaint,
• strike,
• stampede,
• arrest,
• epidemic,