Modifiers matching harassment:

• unlawful,
• serious,
• severe,
• emotional,
• personal,
• sexual,
• psychological,

Simple categories matching unlawful:

• activity,
• discrimination,
• behaviour,
• act,
• play,
• deeds,
• behavior,
• measure,
• user,
• action,
• purpose,
• intercourse,
• infraction,
• conduct,
• interference,
• harassment,
• homicide,
• diversion,
• enterprise,
• motivation,
• practice,
• material,
• vice,
• use,