Modifiers matching accident:

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

Simple categories matching serious:

• system,
• disease,
• result,
• assault,
• illness,
• infringement,
• delinquent,
• drama,
• tale,
• condition,
• operation,
• event,
• infection,
• pains,
• crime,
• issue,
• offense,
• business,
• disorder,
• activity,
• injury,
• offence,
• behaviour,
• pathology,
• status,
• form,
• ceremony,
• procedure,
• error,
• occasion,
• pathogen,
• need,
• blemish,
• disability,
• item,
• disaster,
• penalty,
• act,
• trouble,
• wound,
• promise,
• ailment,
• hazard,
• subject,
• action,
• disruption,
• consequence,
• participation,
• measure,
• stuff,
• failure,
• calamity,
• harassment,
• danger,
• misfortune,
• abnormality,
• accident,
• loss,
• sanction,
• weapon,
• storm,
• game,
• idea,
• reader,
• behavior,
• pain,
• addiction,
• misbehaviour,
• trait,
• indiscipline,
• tendency,
• happening,
• end,
• reaction,
• content,
• handicap,
• interaction,
• situation,
• violation,
• theme,
• forum,
• defect,
• gathering,
• std,
• violence,
• surgery,
• incident,
• cancer,
• misconduct,
• agent,
• casualty,
• narcotic,
• scholar,
• science,
• zoonosis,
• state,
• user,
• writing,
• sin,
• dance,
• passion,
• malignancy,
• piece,
• disturbance,
• injustice,
• works,
• nature,
• study,
• case,
• flaw,
• thing,
• drug,
• program,
• professional,
• story,
• symptom,
• attack,
• song,
• abuse,
• evil,
• malady,
• threat,
• development,
• damage,
• occurrence,
• complication,
• constraint,
• experience,
• enterprise,
• matter,
• malfunction,
• sector,
• upheaval,
• emotion,
• grounds,
• infraction,
• larceny,
• challenge,
• contagion,
• misdeed,
• imperfection,
• wrongdoing,
• charge,
• diversion,
• topic,
• profession,
• conduct,
• conflict,
• headache,
• harm,
• transgression,
• entity,
• enjoyment,
• application,
• manifestation,
• complaint,
• cause,
• mistake,
• help,
• music,
• aberration,
• trauma,
• discipline,
• morbidity,
• document,
• phenomenon,
• work,
• sickness,
• endeavor,
• animal,
• circumstances,
• substance,
• bacteria,
• phobia,
• difficulty,
• arrhythmia,
• tumour,
• point,
• information,
• virus,
• felony,
• risk,
• attempt,
• journal,
• effort,
• stage,
• title,
• material,
• malpractice,
• setback,
• problem,
• allergy,
• mishap,
• intervention,
• stimulant,