Modifiers matching contingency:

• unexpected,
• acute,
• unpredictable,
• major,
• unforeseen,
• specified,
• unusual,
• natural,
• idiosyncratic,
• future,
• unpleasant,
• social,
• complex,
• permanent,
• unavoidable,
• unforeseeable,
• adverse,
• usual,
• particular,
• financial,
• remote,
• routine,
• immediate,
• single,
• negative,
• historical,
• external,
• new,

Simple categories matching unpredictable:

• catastrophe,
• event,
• domain,
• misfortune,
• situation,
• storm,
• current,
• action,
• occurrence,
• disturbance,
• motion,
• break,
• force,
• episode,
• sound,
• signal,
• fluctuation,
• change,
• disorder,
• phenomenon,
• object,
• shock,
• circumstances,
• elements,
• noise,
• risk,
• system,
• upheaval,
• behaviour,
• cause,
• danger,
• hazard,
• weather,
• illness,
• condition,
• disease,
• incident,
• thing,
• process,
• accident,
• blessing,
• contingency,
• disruption,
• problem,
• disaster,