Modifiers matching noise:

• outdoor,
• secondary,
• continuous,
• loud,
• sudden,
• level,
• scary,
• unusual,
• single,
• out,
• unwanted,
• exterior,
• environmental,
• incoherent,
• unpredictable,
• intermittent,
• audible,
• typical,
• new,
• mental,
• everyday,
• annoying,
• abnormal,
• ambient,
• mechanical,
• outside,
• accidental,
• unexpected,
• regular,
• little,
• analog,
• electrical,
• domestic,
• strange,
• white,
• wideband,
• coherent,
• nearby,
• quiet,
• interfering,
• light,
• surrounding,
• percussive,
• real,
• commercial,
• motor,
• natural,
• structured,
• biological,
• technical,
• uncontrollable,
• constant,
• sharp,
• undesirable,
• acoustic,
• fundamental,
• acute,
• internal,
• indoor,
• extraneous,
• unique,
• stationary,
• colored,
• common,
• impulsive,
• excessive,
• transient,
• familiar,
• animal,
• simple,
• over,
• random,
• electric,
• electronic,
• aerodynamic,
• traumatic,
• external,
• artificial,
• odd,
• behavioural,

Simple categories matching indoor:

• activity,
• party,
• sport,
• furniture,
• antenna,
• support,
• exhibit,
• partition,
• facility,
• housing,
• contaminant,
• game,
• area,
• institution,
• theatre,
• surface,
• tile,
• creature,
• entertainment,
• display,
• particle,
• chemical,
• space,
• exposure,
• event,
• medium,
• fountain,
• houseplant,
• allergen,
• place,
• condition,
• photograph,
• clientele,
• item,
• location,
• renovation,
• flower,
• atmosphere,
• drain,
• appliance,
• firework,
• organism,
• attraction,
• communication,
• machine,
• vehicle,
• obstruction,
• wall,
• art,
• environment,
• use,
• gas,
• quality,
• stadium,
• celebration,
• plant,
• athletics,
• floor,
• treatment,
• equipment,
• task,
• pest,
• shelter,
• antigen,
• enclosure,
• job,
• dog,
• gathering,
• shot,
• pesticide,
• fun,
• allergy,
• component,
• passage,
• housework,
• play,
• arena,
• establishment,
• application,
• lamp,
• site,
• thing,
• ornament,
• problem,
• usage,
• source,
• performance,
• decoration,
• room,
• unit,
• sound,
• climate,
• light,
• object,
• substance,
• fuel,
• product,
• furnishing,
• restaurant,
• set,
• venue,
• bird,
• fitting,
• food,
• coating,
• scene,
• stuff,
• control,
• assembly,
• substrate,
• installation,
• particulate,
• air,
• recreation,
• function,
• lighting,
• devices,
• lodging,
• setting,
• toy,
• container,
• project,
• exercise,
• noise,
• insect,
• diversion,
• centre,
• work,
• building,
• meeting,
• device,
• action,
• fixture,
• pet,
• course,
• pool,
• covering,
• animal,
• loudspeaker,
• material,
• pollutant,
• structure,
• graphics,