Modifiers matching antigen:

• internal,
• foreign,
• extraneous,
• possible,
• exogenous,
• diverse,
• main,
• several,
• particulate,
• strong,
• noninfectious,
• oral,
• indoor,
• harmless,
• environmental,
• endogenous,
• perennial,
• free,
• outdoor,
• harmful,
• infectious,
• outside,
• single,
• lethal,
• peripheral,
• innocuous,
• viral,
• nutritional,
• active,
• simple,
• microbial,
• extrinsic,
• soluble,
• small,
• proteinaceous,
• dangerous,
• bacterial,

Simple categories matching proteinaceous:

• membrane,
• surface,
• substance,
• material,
• stain,
• fluid,
• matrix,
• substrate,
• antigen,
• molecule,
• compound,
• food,
• fibre,
• feed,
• binder,
• macromolecule,
• catalyst,
• medium,
• drug,
• polymer,
• fiber,
• part,
• carrier,
• adhesive,
• agent,
• content,
• structure,
• component,
• meat,