Modifiers matching substrate:

• crystalline,
• solid,
• radioactive,
• massive,
• organic,
• porous,
• wet,
• rigid,
• stony,
• nuclear,
• related,
• popular,
• adsorptive,
• first,
• hard,
• flexible,
• unusual,
• natural,
• dietary,
• level,
• dense,
• approved,
• larger,
• metal,
• planar,
• cubic,
• volatile,
• yielding,
• sized,
• synthetic,
• exotic,
• variable,
• proteinaceous,
• flat,
• experimental,
• hot,
• intermediate,
• exposed,
• nonmagnetic,
• polished,
• classical,
• desired,
• secondary,
• aromatic,
• electronic,
• medium,
• biogenic,
• critical,
• cellular,
• wrong,
• number,
• vital,
• strong,
• size,
• agricultural,
• ductile,
• plane,
• terrestrial,
• elemental,
• hydrophobic,
• modern,
• electric,
• interesting,
• inexpensive,
• municipal,
• nonliving,
• volcanic,
• typical,
• overlying,
• nonabsorbent,
• rough,
• transparent,
• printable,
• individual,
• biodegradable,
• unconsolidated,
• compact,
• temporary,
• thermal,
• noncrystalline,
• underwater,
• biochemical,
• microscopic,
• varied,
• commercial,
• bacterial,
• anisotropic,
• expensive,
• poor,
• heterogenous,
• unnatural,
• anthropogenic,
• lifeless,
• biological,
• intracellular,
• innovative,
• appropriate,
• surgical,
• sticky,
• fragile,
• dental,
• thick,
• ceramic,
• sturdy,
• single,
• durable,
• endogenous,
• birefringent,
• exogenous,
• particulate,
• industrial,
• permanent,
• ionic,
• cohesive,
• base,
• nonflammable,
• adsorbent,
• penetrating,
• friable,
• platelike,
• inorganic,
• hygroscopic,
• brittle,
• overhead,
• cyclic,
• useful,
• color,
• resilient,
• steep,
• possible,
• consumable,
• non-greasy,
• neutral,
• important,
• narrow,
• inflexible,
• alternative,
• unrelated,
• liquid,
• warm,
• steroidal,
• uncharged,
• impenetrable,
• white,
• external,
• real,
• basic,
• polycrystalline,
• antigenic,
• compliant,
• cylindrical,
• starting,
• rare,
• colored,
• multiple,
• fixed,
• usual,
• fermentable,
• traditional,
• outdoor,
• fatty,
• wooden,
• unconventional,
• heated,
• aliphatic,
• complex,
• stable,
• primary,
• essential,
• inert,
• powdered,
• labile,
• available,
• painted,
• virgin,
• mechanical,
• over,
• interior,
• bendable,
• anodic,
• concrete,
• anionic,
• difficult,
• fresh,
• noble,
• heavy,
• photoconductive,
• lipophilic,
• macromolecular,
• bulky,
• floating,
• lightweight,
• chemical,
• softer,
• moist,
• starchy,
• soft,
• supportive,
• pure,
• oxidizable,
• compressible,
• tough,
• absorptive,
• realistic,
• periodic,
• disposable,
• biologic,
• shiny,
• light,
• thin,
• fine,
• photosensitive,
• simple,
• precious,
• nonpolar,
• robust,
• new,
• additional,
• extracellular,
• defined,
• indoor,
• disclike,
• piezoelectric,
• loose,
• marine,
• prepared,
• textured,
• foreign,
• reactive,
• polish,
• metallic,
• cold,
• clean,
• iron,
• nutritional,
• cheap,
• general,
• informative,
• isotropic,
• supporting,
• structural,
• sacrificial,
• clear,
• smaller,
• valuable,
• good,
• coastal,
• alkaline,
• absorbent,
• permeable,
• shared,
• saturated,
• ferrous,
• vertical,
• sugary,
• catalytic,
• raw,
• nonconducting,
• refractory,
• cementitious,
• fibrous,
• smooth,
• automotive,
• unstable,
• conventional,
• resistant,
• insoluble,
• acidic,
• aggregate,
• internal,
• enzymatic,
• underlying,
• major,
• stabilizing,
• acid,
• bright,
• renewable,
• standard,
• relevant,
• elastic,
• optical,
• geological,
• consolidated,
• unsaturated,
• steeper,
• digestible,
• diverse,
• portable,
• ic,
• suitable,
• technical,
• divalent,
• harder,
• plastic,
• semiconducting,
• persistent,
• unpainted,
• oxidative,
• uneven,
• delicate,
• architectural,
• abundant,
• polar,
• coated,
• finer,
• monolithic,
• little,
• continuous,
• unwanted,
• attractive,
• non-ferrous,
• translucent,
• heavier,
• moving,
• thermoplastic,
• versatile,
• opaque,
• interfering,
• nitrogenous,
• heterocyclic,
• nonmetallic,
• nonmetal,
• dried,
• inhibitory,
• resinous,
• granular,
• nonporous,
• physical,
• soluble,
• odd,
• mobile,
• accessible,
• beltlike,
• regulatory,
• ephemeral,
• environmental,
• sensitive,
• discontinuous,
• proper,
• impervious,
• flammable,
• non-porous,
• abrasive,
• desirable,
• nutrient,
• impermeable,
• advanced,
• edible,
• convenient,
• dark,
• key,
• conductive,
• mixed,
• glossy,
• dissolved,
• small,
• artificial,
• coarse,
• native,
• weak,
• invertebrate,
• woody,
• exterior,
• physiological,
• functional,
• metabolic,
• malleable,
• dissimilar,
• rubbery,
• irregular,
• binding,
• ordinary,
• curved,
• dusty,
• calcareous,
• specialized,
• metamorphic,
• gaseous,
• nonionic,
• refined,
• round,
• heterogeneous,
• slippery,
• carbonyl,
• active,
• model,
• molecular,
• dry,
• reflective,
• damp,
• infrared,
• amorphous,
• out,
• hydrophilic,
• semiconductive,
• charged,
• homogeneous,
• specular,
• auxiliary,
• common,
• nonconductive,
• firm,
• coloured,
• polymeric,
• special,
• large,
• innocuous,
• several,

Simple categories matching heterocyclic:

• acid,
• group,
• base,
• atom,
• polymer,
• chemical,
• system,
• substrate,
• aldehyde,
• amine,
• constituent,
• compound,
• phosphate,