Modifiers matching obstruction:

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

Simple categories matching low:

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