Modifiers matching noise:

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

Simple categories matching scary:

• monster,
• activity,
• character,
• creature,
• thing,
• disease,
• stuff,
• illness,
• sickness,
• noise,
• decoration,
• land,
• critter,
• story,
• item,
• information,
• being,
• situation,
• object,
• part,
• toy,
• animal,