Modifiers matching obstruction:

• physical,
• virtual,
• indoor,
• large,
• permanent,
• electrical,
• featureless,
• cooler,
• vertical,
• temporary,
• level,
• solid,
• bigger,
• current,
• larger,
• nearby,
• minor,
• unusual,
• impenetrable,
• local,
• hydraulic,
• up,
• short,
• subsurface,
• metal,
• internal,
• visual,
• artificial,
• natural,
• opaque,
• nasal,
• outdoor,
• overhead,
• additional,
• raised,
• small,
• visible,
• hard,
• underwater,
• dense,
• smaller,
• elongated,
• under,
• surrounding,
• adjacent,
• isolated,
• layer,
• irregular,
• multiple,
• low,
• past,
• common,
• over,
• geographic,
• external,
• immovable,
• removable,
• hidden,
• fixed,
• underground,
• terrestrial,
• simple,
• horizontal,
• lighted,
• insurmountable,
• urethral,
• topical,
• hazardous,
• major,
• typical,
• upright,
• movable,
• linear,
• spatial,
• lateral,
• significant,
• environmental,
• discrete,
• clear,
• relevant,
• taller,
• tall,
• structural,
• rigid,
• mechanical,

Simple categories matching low:

• level,
• furniture,
• stratum,
• form,
• shrub,
• character,
• vegetation,
• grass,
• action,
• rank,
• surface,
• area,
• object,
• invertebrate,
• chair,
• perch,
• shoes,
• frequency,
• animal,
• section,
• item,
• process,
• protein,
• building,
• piece,
• ground,
• bush,
• plant,
• country,
• mood,
• bench,
• elevation,
• cloud,
• place,
• tree,
• barrier,
• use,
• affinity,
• light,
• value,
• furnishing,
• metal,
• status,
• structure,
• ornamental,
• binder,
• obstruction,
• crime,
• class,
• task,
• establishment,
• facility,
• spot,
• clearance,
• power,
• detail,
• condition,
• situation,
• point,
• perennial,
• land,
• annual,
• pressure,