Modifiers matching ground:

• neutral,
• soft,
• weak,
• clear,
• over,
• vertical,
• artificial,
• convenient,
• bad,
• rough,
• high,
• hard,
• natural,
• common,
• sacred,
• level,
• sandy,
• undisturbed,
• sized,
• flat,
• low,
• good,
• rigid,
• off,
• loose,
• firm,
• safe,
• up,
• uneven,
• clean,
• shiny,
• permeable,
• open,
• metal,
• white,
• metallic,
• stable,
• grown,
• dry,
• sensitive,
• softer,
• waterlogged,
• familiar,
• electrical,
• unstable,
• old,
• mechanical,
• particular,
• dangerous,
• slippery,
• disturbed,
• new,
• durable,
• elevated,
• rocky,
• moist,
• higher,
• irregular,
• unsecured,
• heavy,
• porous,
• paved,
• conductive,
• under,
• difficult,
• harder,
• routine,
• holy,
• hazardous,
• uncultivated,
• barren,
• wet,
• working,
• coarse,
• technical,
• woven,
• private,

Simple categories matching softer:

• material,
• commodity,
• metal,
• alloy,
• mineral,
• wine,
• product,
• wood,
• food,
• soil,
• stone,
• information,
• surface,
• wire,
• cord,
• vegetable,
• gem,
• ground,
• bone,
• fruit,
• variable,
• medium,
• organism,
• decoration,
• substrate,
• element,
• area,
• formation,
• ingredient,
• cheese,
• part,
• rock,
• covering,
• floor,
• ore,
• veggie,
• particle,
• fibre,
• item,
• property,
• ion,
• sediment,
• concept,
• measure,
• thing,
• pastel,
• solid,
• filling,
• unit,
• tissue,
• structure,
• aggregate,
• white,
• tree,
• attribute,
• substance,
• fabric,
• rubber,
• feelings,
• meat,
• bean,
• hardwood,
• equipment,
• abrasive,
• fiber,
• legume,
• resin,