Modifiers matching accident:

• serious,
• violent,
• medical,
• everyday,
• tragic,
• random,
• dangerous,
• significant,
• major,
• dramatic,
• marine,
• big,
• massive,
• conventional,
• industrial,
• secondary,
• simple,
• bad,
• unusual,
• operational,
• electric,
• unintentional,
• unpredictable,
• unfortunate,
• minor,
• catastrophic,
• single,
• unexpected,
• military,
• traumatic,
• nuclear,
• fatal,
• shocking,
• natural,
• uncommon,
• vascular,
• historical,
• internal,
• common,
• sudden,
• future,
• related,
• severe,
• unforeseen,
• genetic,
• physical,
• lethal,
• maritime,
• electrical,
• small,
• hazardous,
• agricultural,
• vehicular,
• previous,
• working,
• terrible,
• personal,
• cerebrovascular,
• possible,
• mechanical,
• supporting,
• civil,
• isolated,
• external,
• preventable,
• cerebral,
• technological,
• neurologic,
• harsh,
• interior,
• disastrous,

Simple categories matching possible:

• infection,
• opposition,
• poison,
• agent,
• cause,
• impurity,
• condition,
• pathology,
• development,
• change,
• fluid,
• contaminant,
• accident,
• malady,
• activity,
• comfort,
• thing,
• material,
• eruption,
• equipment,
• interaction,
• specification,
• reaction,
• service,
• career,
• disorder,
• defect,
• entertainment,
• disease,
• entity,
• protease,
• complication,
• disturbance,
• morbidity,
• information,
• rodent,
• place,
• organism,
• procedure,
• solution,
• list,
• usage,
• sport,
• precursor,
• theme,
• system,
• situation,
• pollutant,
• state,
• means,
• substrate,
• bacteria,
• illness,
• sector,
• error,
• precipitant,
• way,
• danger,
• emotion,
• catalyst,
• germ,
• virus,
• residue,
• antigen,
• sentence,
• indication,
• pathogen,
• work,
• lesion,
• acid,
• modification,
• problem,
• animal,
• artifact,
• market,
• conflict,
• motion,
• volatile,
• extra,
• abrasive,
• group,
• action,
• event,
• form,
• facility,
• toxin,
• surface,
• process,
• chemical,
• evidence,
• hazard,
• fuel,
• predator,
• disaster,
• area,
• failure,
• contamination,
• metal,
• symptom,
• occurrence,
• mechanism,
• prey,
• inflammation,
• target,
• ingredient,
• piece,
• assistant,
• incident,
• catastrophe,
• feature,
• substance,
• allergen,
• layer,
• difficulty,
• request,
• injury,
• parasite,
• nexus,
• toxicant,
• use,
• transformation,
• syndrome,
• intermediate,