Modifiers matching obstacle:

• opaque,
• natural,
• visual,
• physical,
• single,
• coming,
• everyday,
• typical,
• stationary,
• practical,
• concrete,
• fixed,
• artificial,
• adjacent,
• high,
• extensive,
• interfering,
• institutional,
• mechanical,
• static,
• clear,
• tricky,
• multiple,
• dangerous,
• large,
• unusual,
• linear,
• working,
• solid,
• rectangular,
• additional,
• creative,
• underground,
• nearby,
• environmental,
• impenetrable,
• vertical,
• permanent,
• penetrating,
• rural,
• narrow,
• dynamic,
• moving,
• distant,
• size,
• structural,
• removable,
• simple,
• urban,
• private,
• common,
• passive,
• elevated,
• thick,
• psychological,
• wooden,
• local,
• soft,
• architectural,
• outdoor,
• unmovable,
• tall,
• dense,
• overhead,
• world,
• geographic,
• advanced,
• rigid,
• porous,
• special,
• over,
• movable,
• small,
• geological,
• hazardous,
• difficult,
• external,

Simple categories matching over:

• facility,
• time,
• waterway,
• surface,
• style,
• area,
• position,
• knot,
• cabaret,
• obstruction,
• years,
• thing,
• space,
• signal,
• resource,
• food,
• bait,
• slab,
• action,
• system,
• wire,
• paint,
• connection,
• feature,
• vegetable,
• material,
• injury,
• illness,
• trace,
• object,
• liquid,
• resin,
• toy,
• break,
• extra,
• colors,
• hull,
• entity,
• property,
• equipment,
• genre,
• variable,
• medium,
• topic,
• item,
• use,
• set,
• links,
• point,
• instrument,
• institution,
• cable,
• cavity,
• domain,
• noise,
• wrongdoing,
• grain,
• period,
• wrap,
• packing,
• panel,
• term,
• concept,
• subject,
• location,
• building,
• support,
• athlete,
• image,
• assets,
• plastic,
• activity,
• control,
• cracker,
• bus,
• criterion,
• job,
• body,
• component,
• obstacle,
• condition,
• behavior,
• hardware,
• barrier,
• interface,
• world,
• lysozyme,
• art,
• coating,
• substance,
• structure,
• territory,
• airline,
• dessert,
• footwear,
• polyurethane,
• process,
• bed,
• week,
• medication,
• matter,
• rule,
• faculty,
• land,
• water,
• belt,
• terrain,
• tissue,
• endeavor,
• issue,
• web,
• fence,
• pasta,
• force,
• network,
• channel,
• pest,
• opening,
• holiday,
• trail,
• rod,
• airfoil,
• attribute,
• practice,
• mortal,
• information,
• garment,
• fiber,
• sector,
• disorder,
• hole,
• industry,
• substrate,
• village,
• course,
• region,
• alloy,
• void,
• deposit,
• investment,
• green,
• contaminant,
• event,
• park,
• meal,
• joint,
• wall,
• ground,
• commodity,
• metal,
• part,
• fixture,
• document,
• nail,