Modifiers matching obstruction:

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

Simple categories matching visible:

• object,
• event,
• sector,
• area,
• nature,
• thing,
• location,
• part,
• time,
• capillary,
• space,
• character,
• device,
• hazard,
• particle,
• articulator,
• world,
• behavior,
• symbol,
• artefact,
• structure,
• publication,
• equipment,
• disorder,
• marker,
• jewelry,
• item,
• ink,
• dirt,
• obstruction,
• hardware,
• pattern,
• characteristic,
• record,
• point,
• intrusion,
• lesion,
• gadget,
• signal,
• society,
• energy,
• species,
• medium,
• credential,
• register,
• mutation,
• mark,
• difference,
• trace,
• place,
• entity,
• coating,
• color,
• abnormality,
• quality,
• result,
• control,
• office,
• rock,
• field,
• problem,
• vehicle,
• choice,
• vein,
• indicator,
• band,
• pin,
• imperfection,
• damage,
• injury,
• waste,
• resource,
• action,
• indication,
• image,
• parasite,
• fat,
• category,
• room,
• organization,
• abstraction,
• organism,
• industry,
• style,
• alliance,
• agent,
• wound,
• ways,
• tattoo,
• emotion,
• contaminant,
• target,
• activity,
• undergarment,
• alteration,
• accessory,
• element,
• repair,
• outcome,
• clothing,
• cause,
• barrier,
• unit,
• morphology,
• tool,
• business,
• star,
• way,
• symptom,
• situation,
• bird,
• residue,
• reminder,
• accoutrement,
• domain,
• representation,
• pathology,
• condensation,
• plate,
• matter,
• arena,
• blemish,
• incident,
• attribute,
• material,
• ability,
• component,
• disease,
• evidence,
• issue,
• message,
• radiation,
• article,
• aggregate,
• talisman,
• feature,
• marking,
• reaction,
• minority,
• change,
• artery,
• effort,
• fault,
• defect,
• monument,
• panel,
• stuff,
• soil,
• led,
• vapour,
• surface,
• substance,
• pest,
• precipitation,
• filler,
• region,
• benefit,
• light,
• product,
• fixture,
• measure,
• bed,
• uniform,
• assets,
• infection,
• facility,
• landmark,
• phenomenon,
• works,
• means,
• level,
• authorities,
• seam,
• seed,
• property,
• content,
• reward,
• display,
• disability,
• distinction,
• universe,
• improvement,
• stain,
• state,
• function,
• impurity,
• watermark,
• body,
• group,
• assembly,
• crime,
• aspect,
• process,
• artifact,
• sport,
• response,
• institution,
• computer,
• leak,
• trait,
• impairment,
• behaviour,
• information,
• service,
• pollutant,
• figure,
• fluid,
• garment,
• position,
• elements,
• label,
• spot,
• sign,
• form,
• cell,
• irradiation,
• creature,
• invertebrate,
• widget,
• flaw,
• container,
• wealth,
• animal,
• contamination,