Modifiers matching contingency:

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

Simple categories matching idiosyncratic:

• event,
• contingency,