Modifiers matching happening:

• local,
• social,
• public,
• cool,
• sporting,
• evil,
• celestial,
• schoolwide,
• natural,
• mental,
• disastrous,
• informal,
• paranormal,
• major,
• unusual,
• planned,
• abnormal,
• distant,
• corporate,
• current,
• climatic,
• terrible,
• unpleasant,
• unforeseen,
• exciting,
• national,
• unfortunate,
• smaller,
• interesting,
• special,
• unexpected,
• exceptional,
• historical,
• strange,
• unwanted,
• astronomical,
• seasonal,
• surrounding,
• horrible,
• underwater,
• dramatic,
• nasty,
• outlandish,
• covered,
• contemporary,
• significant,
• congregational,
• untoward,
• pleasant,
• serious,
• past,
• ordinary,
• technological,
• traumatic,
• firm,
• important,
• familiar,
• organized,
• global,
• rural,
• internal,
• extraordinary,
• cultural,
• common,
• everyday,

Simple categories matching nasty:

• substance,
• weather,
• stuff,
• pathogen,
• thing,
• creature,
• chemical,
• predator,
• critter,
• bug,
• infection,
• std,
• beast,
• preservative,
• disease,
• pest,
• item,
• emotion,
• bacteria,
• cause,
• germ,
• virus,
• allergen,
• content,
• program,
• condition,
• illness,
• component,
• insect,
• material,
• disorder,
• software,
• happening,
• animal,
• contaminant,
• sickness,
• compound,
• weapon,
• vice,
• microbe,
• parasite,