Modifiers matching residue:

• dietary,
• biological,
• agricultural,
• hydrophobic,
• noxious,
• key,
• nonmetallic,
• basic,
• solid,
• organic,
• dried,
• compressible,
• flexible,
• fibrous,
• interfering,
• harmless,
• nonvolatile,
• tough,
• industrial,
• chemical,
• toxic,
• polar,
• liquid,
• charged,
• off,
• woody,
• iron,
• alkaline,
• dangerous,
• possible,
• carbonaceous,
• insoluble,
• larger,
• fatty,
• vegetative,
• nonpolar,
• uncharged,
• finer,
• oily,
• infectious,
• urban,
• particulate,
• unwanted,
• hydrophilic,
• animal,
• inert,
• loose,
• miscellaneous,
• sensitive,
• automotive,
• botanical,
• essential,
• hazardous,
• explosive,
• light,
• undesired,
• powdery,
• undesirable,
• electronegative,
• stubborn,
• side,
• biochemical,
• corrosive,
• valuable,
• volatile,
• abundant,
• aromatic,
• crystalline,
• binding,
• smaller,
• soluble,
• internal,
• viscous,
• wet,
• functional,
• greasy,
• structural,
• polymeric,
• acid,
• antibiotic,
• acidic,
• clean,
• heavy,
• metallic,
• inorganic,
• combustible,
• visible,
• hard,
• herbaceous,
• conventional,
• unrefined,
• active,
• carcinogenic,
• multiple,
• cheap,
• aliphatic,
• lipophilic,
• sticky,
• penultimate,
• hygroscopic,
• common,
• major,
• refractory,
• fresh,
• poor,
• reactive,
• inexpensive,
• bulky,
• allergenic,
• harmful,
• useful,
• neutral,
• small,
• large,
• dry,
• fine,
• coarse,
• heavier,

Simple categories matching combustible:

• waste,
• gas,
• nature,
• matter,
• space,
• substance,
• metal,
• fabric,
• mineral,
• fiber,
• product,
• article,
• volatile,
• item,
• container,
• decoration,
• compound,
• wax,
• structure,
• equipment,
• liquid,
• material,
• fuel,
• hydrocarbon,
• mixture,
• dust,
• fraction,
• fumes,
• vehicle,
• garbage,
• contaminant,
• solid,
• land,
• scrap,
• object,
• wall,
• powder,
• oil,
• filament,
• vegetation,
• chemical,
• particle,
• sheet,
• rock,
• foil,
• residue,
• construction,
• solvent,
• deposit,
• surface,
• component,
• debris,
• adhesive,
• fluid,