Modifiers matching contaminant:

• harmful,
• agricultural,
• familiar,
• noncombustible,
• airborne,
• unwanted,
• inorganic,
• external,
• environmental,
• unexpected,
• organic,
• meteorological,
• additional,
• abrasive,
• biologic,
• solid,
• undesired,
• noninfectious,
• poisonous,
• unpleasant,
• salt,
• carcinogenic,
• floating,
• reactive,
• finer,
• aqueous,
• natural,
• charged,
• common,
• caustic,
• chemical,
• potential,
• combustible,
• mechanical,
• diverse,
• insoluble,
• nasty,
• volatile,
• structural,
• new,
• hydrophilic,
• passive,
• removable,
• acidic,
• conservative,
• surrounding,
• nonpolar,
• heavier,
• viscous,
• regulated,
• excessive,
• fluid,
• urban,
• ordinary,
• large,
• alkaline,
• detrimental,
• individual,
• microscopic,
• hazardous,
• unacceptable,
• lightweight,
• foreign,
• nonmetallic,
• soft,
• domestic,
• industrial,
• larger,
• modern,
• unusual,
• minor,
• refractory,
• dermal,
• atmospheric,
• soluble,
• dangerous,
• abundant,
• indoor,
• polar,
• physical,
• energetic,
• noxious,
• dense,
• harsh,
• related,
• small,
• multiple,
• synthetic,
• gross,
• local,
• irritating,
• possible,
• light,
• everyday,
• semisolid,
• ferrous,
• dry,
• gaseous,
• corrosive,
• level,
• difficult,
• undesirable,
• outdoor,
• carbonaceous,
• smaller,
• traditional,
• granular,
• unhealthy,
• important,
• first,
• metallic,
• biodegradable,
• several,
• extraneous,
• active,
• cationic,
• experimental,
• loose,
• dietary,
• visible,
• concrete,
• harmless,
• clean,
• persistent,
• lighter,
• fine,
• unsightly,
• miscellaneous,
• single,
• off,
• world,
• deadly,
• critical,
• interfering,
• animal,
• invisible,
• toxic,
• mental,
• size,
• stable,
• out,
• molecular,
• oleophilic,
• siliceous,
• radioactive,
• stubborn,
• intracellular,
• model,
• typical,
• colloidal,
• greasy,
• secondary,
• accidental,
• hard,
• hydrophobic,
• over,
• dissolved,
• non-metallic,
• separate,
• tough,
• residual,
• anionic,
• major,
• anthropogenic,
• opaque,
• radiological,
• usual,
• sticky,
• ferromagnetic,
• heavy,
• conductive,
• unique,
• microbial,
• ic,
• deleterious,
• basic,
• outside,
• elemental,
• coarse,
• inedible,
• exogenous,
• unseen,
• conventional,
• incidental,
• unbound,
• slippery,
• magnetic,
• fibrous,
• lipophilic,
• mobile,
• ambient,
• up,
• moving,
• oily,
• metal,
• pure,
• waterborne,
• polymeric,
• ionic,
• minute,
• suspended,
• particulate,
• damaging,
• numerous,
• endogenous,
• biological,
• key,
• liquid,

Simple categories matching passive:

• circuit,
• particle,
• activity,
• conductor,
• income,
• measure,
• source,
• appliance,
• display,
• equipment,
• modality,
• predator,
• control,
• system,
• structure,
• task,
• barrier,
• object,
• tissue,
• process,
• device,
• program,
• plate,
• content,
• dielectric,
• use,
• procedure,
• emotion,
• endeavour,
• metal,
• concept,
• stretching,
• form,
• medium,
• part,
• recreation,
• mechanism,
• design,
• losses,
• model,
• tool,
• conveyor,
• approach,
• instrument,
• quality,
• state,
• action,
• dispenser,
• game,
• stretch,
• gas,
• craft,
• block,
• information,
• liquid,
• mixer,
• bird,
• material,
• entity,
• nature,
• level,
• cooling,
• care,
• organism,
• surface,
• energy,
• interference,
• constraint,
• restraint,
• exercise,
• outlet,
• devices,
• element,
• method,
• component,
• failure,
• motion,
• attribute,
• inactivity,
• usage,
• technology,
• quantity,
• sensor,
• transport,
• obstacle,
• character,
• feature,
• tag,
• safety,
• means,
• characteristic,
• access,
• implementation,
• trap,
• profit,
• artefact,
• contaminant,
• entertainment,
• attitude,
• regulation,
• gear,
• production,
• constituent,
• radiator,
• property,
• data,
• movement,
• elements,
• transducer,
• investment,
• instruction,
• education,
• assets,
• treatment,
• area,
• facility,
• vessel,
• damper,
• earnings,
• intervention,
• therapy,
• communication,