Modifiers matching soil:

• nutrient,
• pervious,
• thick,
• heavy,
• textured,
• tillable,
• soft,
• chalky,
• natural,
• standard,
• marine,
• permeable,
• nonconductive,
• unwanted,
• stubborn,
• ordinary,
• fine,
• toxic,
• alkaline,
• organic,
• compressible,
• coarse,
• resistant,
• dry,
• infertile,
• humid,
• size,
• leafy,
• hard,
• dispersive,
• cohesive,
• strong,
• sticky,
• everyday,
• nonpolar,
• hydrophilic,
• unstable,
• spongy,
• particular,
• softer,
• dense,
• tough,
• frictional,
• insoluble,
• bad,
• medium,
• moving,
• poor,
• irregular,
• tight,
• structured,
• basic,
• weak,
• stable,
• local,
• common,
• typical,
• firm,
• active,
• outdoor,
• inert,
• plastic,
• damp,
• surficial,
• light,
• compact,
• overlying,
• indigenous,
• soluble,
• sandy,
• rich,
• impervious,
• residual,
• colored,
• oily,
• saturated,
• sedimentary,
• conductive,
• fitting,
• free,
• stony,
• clean,
• hydrophobic,
• heavier,
• granular,
• moist,
• alluvial,
• lightweight,
• packed,
• loose,
• impermeable,
• lighter,
• visible,
• porous,
• acidic,
• finer,
• gritty,
• wet,
• complex,
• friable,
• industrial,
• heterogeneous,
• solid,
• unconsolidated,
• red,
• sterile,
• aggregate,
• soggy,
• inorganic,
• subsurface,
• difficult,
• mixed,
• mild,
• expansive,
• lipophilic,
• sensitive,
• particulate,
• absorbent,

Simple categories matching alkaline:

• substance,
• caustic,
• derivative,
• material,
• ion,
• deposit,
• contaminant,
• secretion,
• mineral,
• constituent,
• food,
• shampoo,
• fruit,
• component,
• metal,
• solvent,
• buffer,
• waste,
• chemical,
• stone,
• drug,
• contamination,
• structure,
• mixture,
• surface,
• paper,
• builder,
• salt,
• atom,
• condition,
• soil,
• compound,
• agent,
• gas,
• thing,
• dentifrice,
• vegetable,
• pool,
• earth,
• rock,
• system,
• hydroxide,
• fungicide,
• fluoride,
• phosphate,
• medium,
• fluid,
• residue,
• particle,
• sorbent,
• stuff,
• composition,
• cleaner,
• substrate,
• enzyme,
• toiletry,
• solution,
• azide,
• formulation,
• water,
• matter,
• filler,
• byproduct,
• atmosphere,
• activator,
• liquor,
• oxide,
• lake,
• magma,
• solid,