Modifiers matching arthritis:

• systemic,
• inflammatory,
• adult,
• severe,
• primary,
• underlying,
• degenerative,
• metabolic,
• noninfectious,
• active,
• transient,
• septic,
• induced,
• preexisting,
• acute,

Simple categories matching underlying:

• agreement,
• condition,
• activity,
• disease,
• offense,
• illness,
• works,
• disorder,
• pathology,
• construction,
• component,
• incident,
• skill,
• agent,
• entity,
• index,
• process,
• insurance,
• factor,
• psychosis,
• theme,
• assets,
• motive,
• investment,
• base,
• emotion,
• server,
• cause,
• ownership,
• device,
• hardware,
• interest,
• misconduct,
• development,
• structure,
• tissue,
• determinant,
• liabilities,
• diathesis,
• complication,
• film,
• disposition,
• material,
• quality,
• input,
• file,
• infection,
• collateral,
• malignancy,
• part,
• documentation,
• discipline,
• characteristic,
• deposit,
• problem,
• attribute,
• connection,
• object,
• compartment,
• inflammation,
• behavior,
• crime,
• anemia,
• transaction,
• biotechnology,
• transport,
• market,
• asset,
• tumor,
• resource,
• force,
• security,
• property,
• arrangement,
• intervention,
• fear,
• rock,
• act,
• sediment,
• felony,
• item,
• commodity,
• catastrophe,
• holding,
• signal,
• substance,
• receptacle,
• cognition,
• values,
• difficulty,
• right,
• shape,
• work,
• manifestation,
• dermatosis,
• system,
• ailment,
• deformity,
• contract,
• tax,
• skin,
• medium,
• software,
• distribution,
• theory,
• network,
• meaning,
• attitude,
• situation,
• ratio,
• symptom,
• fibrosis,
• cancer,
• seizure,
• table,
• phenomenon,
• hazard,
• organs,
• notion,
• substrate,
• relationship,
• content,
• disturbance,
• document,
• image,
• section,
• technology,
• protocol,
• idea,
• headache,
• hypersensitivity,
• support,
• state,
• event,
• variable,
• reason,
• ability,
• measure,
• area,
• end,
• lesion,
• product,
• trait,
• data,
• instrument,
• terms,
• value,
• allergy,
• arthritis,
• impairment,
• principle,
• metal,
• mechanism,
• fact,
• share,
• difference,
• issue,
• addiction,
• payoff,
• task,
• action,
• feature,
• fraud,
• mineral,
• concept,
• layer,
• surface,
• course,
• abnormality,
• partnership,
• interaction,