Modifiers matching microbe:

• damaging,
• contagious,
• cellular,
• pathogenic,
• infectious,
• primitive,
• small,
• marine,
• dangerous,
• eukaryotic,
• harmful,
• unwanted,
• environmental,
• tiny,
• heterotrophic,
• beneficial,
• real,
• effective,
• model,
• toxic,
• conventional,
• opportunistic,
• intestinal,
• smaller,
• positive,
• common,
• hazardous,
• intracellular,
• waterborne,
• unicellular,
• anaerobic,
• lethal,
• photosynthetic,
• undesirable,
• parasitic,
• invasive,
• deadly,
• indigenous,
• animal,
• latent,
• biological,
• viable,
• higher,
• nasty,
• invisible,
• larger,
• destructive,
• new,
• useful,

Simple categories matching invisible:

• adhesive,
• force,
• entity,
• particle,
• image,
• state,
• difference,
• ink,
• agent,
• elements,
• variable,
• thing,
• process,
• being,
• microorganism,
• contaminant,
• wave,
• quality,
• organism,
• object,
• objective,
• nature,
• cause,
• substance,
• matter,
• trait,
• attribute,
• substructure,
• creature,
• microbe,
• gas,
• phenomenon,
• range,
• energy,
• condition,
• light,
• quantity,
• course,
• reality,
• radiation,
• offense,
• symbol,
• diversity,
• difficulty,
• item,
• symptom,
• illness,
• vision,
• trade,
• ideal,
• fluid,
• defect,
• character,
• import,
• material,
• property,
• ray,
• disability,
• level,
• disease,
• structure,
• power,
• germ,