Modifiers matching failure:

• catastrophic,
• early,
• cardiovascular,
• mechanical,
• physical,
• common,
• reproductive,
• random,
• electrical,
• electronic,
• structural,
• major,
• dramatic,
• moral,
• driving,
• renal,
• critical,
• physiological,
• disastrous,
• functional,
• technical,
• significant,
• internal,
• respiratory,
• cataclysmic,
• hard,
• temporary,
• passive,
• actual,
• layer,
• motor,
• typical,
• serious,
• sudden,
• costly,
• public,
• geological,
• unexpected,
• chronic,
• miscellaneous,
• cognitive,
• localized,
• transient,
• larger,
• local,
• rapid,
• uncontrollable,
• controlled,
• minor,
• technological,
• parental,
• logical,
• dynamic,
• secondary,
• single,
• dangerous,
• possible,
• electric,
• economic,
• small,
• cardiac,
• environmental,
• female,
• operational,

Simple categories matching operational:

• activity,
• efficiency,
• interference,
• equipment,
• support,
• expense,
• assets,
• error,
• failure,
• discharge,
• steps,
• unit,
• component,
• system,
• aspect,
• interruption,
• circumstances,
• committee,
• mechanism,
• event,
• information,
• procedure,
• description,
• accident,
• process,
• status,
• capability,
• assistance,
• symbol,
• material,
• constraint,
• deviation,
• structure,
• resource,
• measure,
• quality,
• gauge,
• requirement,
• phenomenon,
• feature,
• job,
• figure,
• expenditure,
• control,
• upset,
• challenge,
• improvement,
• cycle,
• connection,
• details,
• service,
• policy,
• task,
• button,
• role,
• organisation,
• vehicle,
• state,
• part,
• use,
• effort,
• sound,
• region,
• product,
• craft,
• discipline,
• spacecraft,
• testing,
• aircraft,
• cost,
• data,
• institution,
• instructions,
• cluster,
• function,
• solution,
• risk,
• entity,
• opening,
• cooperation,
• audit,
• device,
• work,
• focus,
• agency,
• incident,
• management,
• force,
• sector,
• issue,
• property,
• change,
• business,
• agreement,
• program,
• variable,
• decision,
• setting,
• domain,
• company,
• project,
• department,
• consideration,
• waste,
• readiness,
• innovation,
• site,
• performance,
• environment,
• indicator,
• user,
• method,
• condition,
• zone,
• practice,
• success,
• budget,
• application,
• area,
• guidance,
• disruption,
• point,
• goal,
• liabilities,
• modification,
• guideline,
• stuff,
• action,
• necessity,
• concept,
• assembly,
• restriction,
• input,
• aid,
• topic,
• strategy,
• section,
• skill,
• sensor,
• works,
• mission,
• mirror,
• choice,
• report,
• parameter,
• mode,
• plan,
• behavior,
• personnel,
• situation,
• problem,
• occurrence,
• duty,
• outcome,
• organization,
• characteristic,
• specification,
• employee,
• tool,
• behaviour,
• staff,
• level,
• facility,
• supply,
• means,
• document,
• inspection,
• body,
• team,
• knowledge,
• equation,
• thing,
• criterion,
• layer,
• theme,
• dealings,
• attribute,
• command,
• variation,
• schedule,
• base,
• ratio,
• notice,
• impact,
• server,
• arrangement,
• temperature,
• line,
• matter,
• difficulty,
• office,
• record,
• group,
• limitation,
• item,
• building,
• nature,
• person,
• proposition,
• experience,