Modifiers matching ground:

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

Simple categories matching stable:

• material,
• liquid,
• ore,
• phase,
• surface,
• vaccine,
• linkage,
• mineral,
• profession,
• resin,
• object,
• equipment,
• state,
• metal,
• monomer,
• substrate,
• work,
• disposition,
• structure,
• contaminant,
• compound,
• substance,
• group,
• feature,
• derivative,
• cell,
• wood,
• cause,
• unit,
• form,
• intermediate,
• particle,
• paper,
• ground,
• expense,
• filler,
• machine,
• part,
• aggregate,
• formation,
• debt,
• pesticide,
• attribute,
• clock,
• investment,
• food,
• gas,
• bond,
• carbohydrate,
• grouping,
• foundation,
• oxide,
• nitride,
• mrna,
• organs,
• matrix,
• solvent,
• difficulty,
• pathogen,
• trade,
• isomer,
• fraction,
• job,
• precursor,
• complex,
• paraffin,
• electrode,
• fibre,
• polymer,
• sugar,
• fluid,
• pigment,
• carrier,
• body,
• virus,
• quantity,
• sediment,
• fiber,
• salt,
• institution,
• chloride,
• quality,
• buffer,
• market,
• disability,
• stratum,
• thing,
• thermoplastic,
• emotion,
• level,
• adhesive,
• barrier,
• element,
• company,
• trait,
• location,
• web,
• potential,
• activity,
• reactant,
• currency,
• handicap,
• furniture,
• atom,
• value,
• property,
• insulator,
• settlement,
• disease,
• site,
• housing,
• rock,
• protein,
• base,
• pad,
• outlet,
• fat,
• disorder,
• installation,
• hydrocarbon,
• soil,
• reservoir,
• alloy,
• security,
• complication,
• molecule,
• assets,
• storage,
• illness,
• article,
• fabric,
• arrangement,
• ion,
• hydrate,
• matter,
• force,
• commodity,
• lamp,
• polyamide,
• pattern,
• support,
• association,
• society,
• ketone,
• container,
• foam,
• time,
• sector,
• country,
• gap,
• characteristic,
• pillow,
• region,
• isotope,
• carbonyl,
• flame,
• environment,
• component,
• occupation,
• community,
• plastic,
• union,
• organ,
• rna,
• building,
• species,
• star,
• item,
• floor,
• nature,
• business,
• entity,
• constituent,
• shape,
• ordering,
• relationship,
• life,
• zeolite,
• instrument,
• system,
• macromolecule,
• place,
• phosphate,
• nation,
• line,
• tissue,
• lacquer,
• layer,
• chemical,
• source,
• hydride,
• radical,
• construction,
• performance,
• administration,
• carbonate,
• polysaccharide,
• loan,
• flooring,
• price,
• condition,
• point,
• area,
• enzyme,
• medium,
• hadron,