Modifiers matching trash:

• fine,
• miscellaneous,
• out,
• floating,
• oversized,
• dry,
• compact,
• hydrophobic,
• domestic,
• regular,
• visual,
• modern,
• nonflammable,
• residential,
• noncombustible,

Simple categories matching nonflammable:

• substance,
• item,
• component,
• material,
• stuff,
• gas,
• fiber,
• medium,
• surface,
• liquid,
• fluid,
• substrate,
• trash,
• fabric,
• chemical,
• bath,
• area,