Modifiers matching impurity:

• airborne,
• little,
• physical,
• residual,
• fluid,
• fine,
• damaging,
• undesired,
• microscopic,
• coarse,
• harmful,
• possible,
• chemical,
• volatile,
• minute,
• mental,
• dilute,
• lightweight,
• minor,
• unwanted,
• atmospheric,
• inorganic,
• corrosive,
• colloidal,
• nonpolar,
• particulate,
• suspended,
• micro,
• insoluble,
• off,
• dissolved,
• anionic,
• small,
• organic,
• mechanical,
• stubborn,
• light,
• biological,
• hazardous,
• solid,
• up,
• foreign,
• harmless,
• mobile,
• common,
• homogeneous,
• ordinary,
• visible,
• polar,
• lighter,
• random,
• active,
• heavier,
• heterogeneous,
• soluble,
• out,
• desirable,
• reactive,
• natural,
• unavoidable,
• interfering,
• absorptive,
• separate,
• ionic,
• sticky,
• initial,
• environmental,
• smaller,
• gaseous,

Simple categories matching random:

• drawing,
• event,
• packing,
• object,
• impurity,
• game,
• character,
• thing,
• variation,
• terms,
• toy,
• process,
• merchandise,
• works,
• hardware,
• act,
• activity,
• group,
• item,
• system,
• mutation,
• space,
• place,
• crime,
• generator,
• signal,
• opponent,
• disturbance,
• behavior,
• evolution,
• occurrence,
• feeder,
• fluid,
• influence,
• structure,
• information,
• drift,
• incident,
• medium,
• selection,
• number,
• quantity,
• change,
• means,
• parameter,
• field,
• cause,
• sum,
• form,
• message,
• device,
• attribute,
• data,
• scene,
• interference,
• set,
• violence,
• people,
• phase,
• equipment,
• model,
• stuff,
• block,
• pattern,
• solid,
• part,
• light,
• situation,
• accident,
• goody,
• motion,
• sport,
• experience,
• disruption,
• phenomenon,
• diversion,
• topic,
• song,
• procedure,
• shape,
• furnishing,
• tragedy,
• noise,
• catastrophe,
• elements,
• sound,
• artifact,
• material,
• subject,
• animal,
• perturbation,
• order,
• search,
• content,
• mechanism,
• location,
• component,
• force,
• anachronism,
• fluctuation,
• alteration,
• magazine,
• times,
• fault,
• failure,
• error,
• conductor,
• characteristic,
• piece,
• variable,
• clothes,
• property,
• state,
• condition,
• array,
• area,
• particle,
• movement,
• shock,
• surface,