Modifiers matching core:

• outside,
• inert,
• embedded,
• metaphysical,
• heterogeneous,
• solid,
• inner,
• tangible,
• neutral,
• nonmagnetic,
• plastic,
• cellular,
• metallic,
• nonmetallic,
• atomic,
• shared,
• urban,
• larger,

Simple categories matching nonmetallic:

• matter,
• dust,
• weapon,
• mineral,
• material,
• object,
• commodity,
• line,
• particulate,
• surface,
• core,
• substance,
• system,
• container,
• atom,
• polymer,
• body,
• inclusion,
• solid,
• structure,
• particle,
• element,
• item,
• compound,
• substrate,
• residue,
• deposit,
• instrument,
• metal,
• barrier,
• component,
• part,
• facility,
• glasses,
• gem,
• fiber,
• carcinogen,
• contaminant,
• pipe,
• coating,
• medium,
• connection,
• tool,
• matrix,
• agent,
• liquid,