Modifiers matching obstacle:

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

Simple categories matching high:

• card,
• ceiling,
• location,
• alloy,
• structure,
• object,
• school,
• spire,
• place,
• building,
• surface,
• style,
• feature,
• mountain,
• obstacle,
• compound,
• interest,
• elevation,
• song,
• discharge,
• explosive,
• polymer,
• molecule,
• ground,
• content,
• area,
• item,
• sportsman,
• curvature,
• official,
• information,
• status,
• substance,
• ridge,
• point,
• hill,
• arousal,
• value,
• person,
• rank,
• force,
• slope,
• wave,
• control,
• perch,
• language,
• position,
• barrier,
• traffic,
• state,
• meat,
• usage,
• education,
• concentration,
• plateau,
• vehicle,
• weight,
• installation,
• metal,
• level,
• contamination,
• culture,
• street,
• implement,
• priest,
• bill,
• office,
• meal,
• disaster,
• bird,
• society,
• ingredient,
• thing,
• signal,
• complexity,
• room,
• component,
• load,
• wind,
• activity,
• job,
• space,
• spot,
• mass,
• food,
• authority,
• condiment,
• material,
• trap,
• polysaccharide,
• equipment,
• emotion,
• distance,
• mood,
• publicity,
• spread,
• post,
• table,
• ability,
• energy,