Modifiers matching disaster:

• natural,
• major,
• catastrophic,
• international,
• traumatic,
• sudden,
• serious,
• weather,
• acute,
• devastating,
• horrible,
• minor,
• unexpected,
• economic,
• social,
• terrible,
• worldwide,
• unforeseen,
• massive,
• geologic,
• biblical,
• smaller,
• environmental,
• big,
• world,
• marine,
• regional,
• single,
• common,
• humanitarian,
• past,
• external,
• anthropogenic,
• fatal,
• size,
• unpredictable,
• financial,
• tragic,
• global,
• significant,
• meteorological,
• future,
• modern,
• nuclear,
• dangerous,
• geological,
• related,
• destructive,
• larger,
• possible,
• small,
• conventional,
• national,
• climatic,
• personal,
• everyday,
• localized,
• general,
• coastal,
• widespread,
• classical,
• severe,
• large,
• ecological,
• high,
• accidental,
• secondary,
• socioeconomic,
• individual,
• technological,
• unforeseeable,
• periodic,
• predictable,
• political,
• physical,
• rare,
• recent,
• contemporary,
• local,
• civilian,
• uncontrollable,
• typical,

Simple categories matching accidental:

• signal,
• event,
• loss,
• disaster,
• occurrence,
• case,
• action,
• error,
• discharge,
• incident,
• feature,
• characteristic,
• cause,
• death,
• condition,
• damage,
• release,
• losses,
• noise,
• fire,
• trauma,
• property,
• sound,
• situation,
• contaminant,
• phenomenon,