Modifiers matching occurrence:

• natural,
• deviant,
• exogenous,
• unforeseen,
• internal,
• awesome,
• dangerous,
• exceptional,
• common,
• unexpected,
• planned,
• seasonal,
• operational,
• recent,
• unusual,
• miscellaneous,
• disastrous,
• future,
• extraordinary,
• catastrophic,
• unfortunate,
• outside,
• random,
• costly,
• elemental,
• unanticipated,
• interactive,
• unpredictable,
• supernatural,
• traumatic,
• irregular,
• weather,
• historical,
• autonomic,
• sudden,
• physical,
• spontaneous,
• major,
• seismic,
• unavoidable,
• unforeseeable,
• hazardous,
• external,
• rare,
• musical,
• criminal,
• medical,
• organizational,
• unlikely,
• single,
• cosmic,
• temporary,
• neurological,
• unique,
• tragic,
• relevant,
• interesting,
• unpleasant,
• undesirable,
• routine,
• happy,
• strange,
• motivational,
• outdoor,
• adverse,
• dynamic,
• harmful,
• discrete,
• severe,
• inanimate,
• commonplace,
• small,
• unwanted,
• uncertain,
• cataclysmic,
• acoustic,
• positive,
• neurologic,
• ordinary,
• superficial,
• violent,
• significant,
• political,
• disruptive,
• specified,
• abnormal,
• social,
• stressful,
• devastating,
• environmental,
• special,
• accidental,
• infrequent,
• geologic,
• annual,
• deadly,
• extreme,
• unplanned,
• odd,
• climatic,
• benign,
• normal,
• damaging,
• untoward,
• localised,
• periodic,
• terrifying,
• corporeal,
• negative,
• serious,
• transient,
• local,
• astronomical,
• possible,
• everyday,
• dramatic,
• simple,
• meaningful,
• geographical,

Simple categories matching elemental:

• matter,
• material,
• composition,
• affinity,
• metal,
• semiconductor,
• event,
• hazard,
• substance,
• hydrogen,
• quality,
• occurrence,
• cu,
• force,
• dimension,
• constituent,
• component,
• analysis,
• property,
• power,
• carbon,
• sulfur,
• nc,
• quantity,
• atom,
• point,
• particle,
• conflict,
• attack,
• service,
• chemical,
• fluid,
• course,
• precursor,
• gas,
• cycle,
• condition,
• compound,
• system,
• fluorine,
• shape,
• concentration,
• conductor,
• staff,
• trait,
• ability,
• substrate,
• oxygen,
• stuff,
• cluster,
• content,
• phenomenon,
• solid,
• halogen,
• attribute,
• energy,
• theme,
• process,
• nonmetal,
• nitrogen,
• carbohydrate,
• unit,
• indicator,
• crystal,
• nutrient,
• entity,
• temple,
• oxide,
• ratio,
• form,
• location,
• sphere,
• source,
• thing,
• influence,
• isotope,
• necessity,
• mineral,
• state,
• implement,
• contaminant,
• structure,
• danger,
• fraction,