Modifiers matching obstruction:

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

Simple categories matching unusual:

• material,
• event,
• shade,
• recording,
• atom,
• pathogen,
• thing,
• sport,
• pet,
• ornamentation,
• aroma,
• windows,
• animal,
• operations,
• bird,
• system,
• fibre,
• bacteria,
• circumstance,
• surface,
• creature,
• expenditure,
• wind,
• tulip,
• activity,
• item,
• dance,
• condition,
• experience,
• mixture,
• occurrence,
• symptom,
• disturbance,
• woodwind,
• gem,
• difficulty,
• means,
• hardwood,
• prey,
• substance,
• phenomenon,
• accident,
• area,
• shock,
• dish,
• museum,
• container,
• complication,
• festival,
• food,
• state,
• car,
• organism,
• commodity,
• site,
• host,
• fruit,
• flavor,
• music,
• project,
• equipment,
• flavoring,
• coral,
• sweetener,
• plant,
• stuff,
• location,
• acid,
• business,
• gemstone,
• flute,
• category,
• perception,
• ulcer,
• product,
• vessel,
• accessory,
• weather,
• niche,
• truck,
• cause,
• topic,
• requirement,
• joint,
• oddity,
• power,
• idea,
• characteristic,
• key,
• fixture,
• turtle,
• stone,
• restaurant,
• malignancy,
• yarn,
• tradition,
• toy,
• contingency,
• flower,
• structure,
• disease,
• fiber,
• hazard,
• rock,
• combination,
• compound,
• soap,
• filling,
• wood,
• attribute,
• outlet,
• sound,
• mammal,
• insect,
• layer,
• predator,
• pathology,
• problem,
• tree,
• noise,
• pizza,
• sign,
• tumour,
• flooring,
• option,
• gun,
• procedure,
• thought,
• lily,
• fish,
• organ,
• movement,
• reaction,
• instrumentation,
• style,
• installation,
• cost,
• gift,
• neoplasm,
• formation,
• layout,
• stem,
• tumor,
• collection,
• nature,
• legs,
• character,
• wound,
• change,
• process,
• measure,
• sauce,
• ingredient,
• boat,
• flora,
• domain,
• competition,
• trait,
• instrument,
• battery,
• component,
• home,
• touch,
• entertainment,
• drink,
• beer,
• motion,
• service,
• opponent,
• occasion,
• storm,
• stain,
• discomfort,
• organs,
• deposit,
• salt,
• spirits,
• delicacy,
• quality,
• chocolate,
• herb,
• basil,
• cheese,
• instance,
• danger,
• transaction,
• object,
• vehicle,
• flavour,
• vegetation,
• design,
• cancer,
• alloy,
• tremor,
• papers,
• shape,
• situation,
• incident,
• size,
• contaminant,
• decoration,
• facility,
• conifer,
• behavior,
• space,
• story,
• ability,
• circumstances,
• constituent,
• disorder,
• fluid,
• tool,
• critter,
• variation,
• scene,
• word,
• scent,
• losses,
• art,
• cycle,
• use,
• value,
• vegetable,
• substrate,
• behaviour,
• case,
• seed,
• happening,
• invertebrate,
• fear,
• trade,
• marking,
• wine,
• species,
• chemical,
• climate,
• typeface,
• flavouring,
• interest,
• skill,
• textile,
• watch,
• region,
• meat,
• obstruction,
• smell,
• pattern,
• environment,
• grain,
• wool,
• fabric,
• odor,
• livestock,
• symbol,
• ornamental,
• odour,
• property,
• leaf,
• sensation,
• feature,
• color,
• building,
• appearance,
• merchandise,
• bill,
• group,
• antiquity,
• assets,
• conformation,
• piece,
• tissue,
• medium,
• entity,
• metal,
• fare,
• suicide,
• suspect,
• treatment,
• illness,
• infection,
• obstacle,
• weapon,
• individual,
• response,
• spice,
• portion,
• pipe,
• duck,
• pest,
• place,
• document,
• mineral,
• action,