Modifiers matching morbidity:

• postoperative,
• serious,
• maternal,
• related,
• ocular,
• significant,
• important,
• preventable,
• physical,
• psychological,
• fetal,
• minor,
• major,
• severe,
• common,
• pulmonary,
• neonatal,
• surgical,
• possible,
• systemic,
• infrequent,
• additional,

Simple categories matching possible:

• infection,
• hazard,
• cause,
• career,
• thing,
• mechanism,
• market,
• activity,
• contaminant,
• equipment,
• usage,
• substance,
• artifact,
• work,
• condition,
• complication,
• disease,
• piece,
• injury,
• nexus,
• toxin,
• error,
• action,
• contamination,
• material,
• rodent,
• entity,
• agent,
• indication,
• system,
• list,
• means,
• solution,
• layer,
• disorder,
• fuel,
• bacteria,
• antigen,
• change,
• allergen,
• area,
• danger,
• facility,
• sector,
• residue,
• information,
• extra,
• failure,
• transformation,
• surface,
• acid,
• metal,
• pollutant,
• impurity,
• target,
• way,
• pathogen,
• pathology,
• disturbance,
• opposition,
• comfort,
• morbidity,
• prey,
• conflict,
• syndrome,
• feature,
• virus,
• illness,
• emotion,
• theme,
• volatile,
• form,
• eruption,
• organism,
• interaction,
• use,
• service,
• intermediate,
• germ,
• reaction,
• accident,
• poison,
• incident,
• event,
• lesion,
• sport,
• evidence,
• catastrophe,
• procedure,
• occurrence,
• sentence,
• chemical,
• request,
• malady,
• difficulty,
• assistant,
• abrasive,
• toxicant,
• entertainment,
• animal,
• fluid,
• problem,
• symptom,
• specification,
• catalyst,
• precursor,
• group,
• ingredient,
• precipitant,
• protease,
• place,
• disaster,
• process,
• substrate,
• modification,
• development,
• situation,
• predator,
• inflammation,
• state,
• motion,
• parasite,
• defect,