Modifiers matching contingency:

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

Simple categories matching unpredictable:

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