Modifiers matching gas:

• key,
• thin,
• inert,
• atomic,
• rare,
• simple,
• combustible,
• pure,
• tenuous,
• noble,
• diatomic,
• manufactured,
• real,
• strong,
• medicinal,
• cold,
• conductive,
• explosive,
• secondary,
• heavier,
• desirable,
• stable,
• soluble,
• toxic,
• sulfurous,
• ignitable,
• passive,
• safe,
• flammable,
• cheap,
• deleterious,
• controlled,
• carbonaceous,
• industrial,
• malign,
• model,
• hazardous,
• ambient,
• surrounding,
• divalent,
• minor,
• permanent,
• warming,
• under,
• irritating,
• liquid,
• consumable,
• dense,
• airborne,
• deadly,
• supplemental,
• artificial,
• liquefied,
• supercritical,
• familiar,
• dilute,
• dry,
• harmful,
• raw,
• rich,
• useful,
• auxiliary,
• fast,
• liquified,
• metabolic,
• miscellaneous,
• innocuous,
• heated,
• classical,
• diamagnetic,
• vital,
• injurious,
• major,
• interfering,
• supportive,
• carcinogenic,
• electropositive,
• light,
• oxidative,
• reactive,
• poisonous,
• noxious,
• polar,
• organic,
• faster,
• important,
• dissolved,
• biogenic,
• impure,
• relevant,
• acidic,
• monoatomic,
• absorptive,
• single,
• convenient,
• clean,
• benign,
• special,
• popular,
• natural,
• residual,
• corrosive,
• critical,
• suffocating,
• small,
• off,
• refrigerant,
• beneficial,
• frozen,
• buoyant,
• malodorous,
• suitable,
• lightweight,
• conventional,
• indoor,
• aggressive,
• dangerous,
• hydrophilic,
• hot,
• detrimental,
• medium,
• automotive,
• external,
• transparent,
• cryogenic,
• commercial,
• unstable,
• active,
• volatile,
• inorganic,
• chemical,
• neutral,
• individual,
• edible,
• obnoxious,
• propellant,
• valuable,
• radioactive,
• protective,
• monatomic,
• hydrophobic,
• complex,
• expensive,
• alkaline,
• diffusing,
• insoluble,
• refrigerated,
• warm,
• compressible,
• acid,
• basic,
• noncombustible,
• foreign,
• essential,
• base,
• atmospheric,
• working,
• incoming,
• ionic,
• compressed,
• respiratory,
• scientific,
• vesicant,
• inexpensive,
• anthropogenic,
• nonflammable,
• supporting,
• fixed,
• unwanted,
• abundant,
• ordinary,
• out,
• moving,
• lighter,
• starting,
• luminous,
• common,
• mixed,
• paramagnetic,
• unique,
• traditional,
• elemental,
• number,
• molecular,
• synthetic,
• particular,
• available,
• rarefied,
• environmental,
• additional,
• metal,
• incombustible,
• saturated,
• standard,
• oxidizable,
• mobile,
• dusty,
• invisible,
• nontoxic,
• damaging,
• separate,
• technical,
• undesirable,
• floating,
• electronegative,
• heavy,
• inflammable,
• unsaturated,
• harmless,
• medical,
• extraneous,
• weak,
• mental,
• identifiable,
• relativistic,
• nonpolar,

Simple categories matching insoluble:

• salt,
• material,
• oxide,
• complex,
• substance,
• resin,
• particle,
• sulphide,
• salicylate,
• abrasive,
• system,
• waste,
• compound,
• fertilizer,
• component,
• contamination,
• protein,
• impurity,
• precipitate,
• fiber,
• contaminant,
• monomer,
• hydroxide,
• matter,
• polymer,
• aggregate,
• ester,
• solute,
• medium,
• spinel,
• fraction,
• thing,
• builder,
• cement,
• metal,
• product,
• gas,
• halide,
• structure,
• liquid,
• matrix,
• constituent,
• surface,
• solid,
• particulate,
• conductor,
• coating,
• item,
• fluoride,
• metabolite,
• substrate,
• oligosaccharide,
• pollutant,
• drug,
• residue,
• deposit,
• soil,
• chemical,
• electrode,
• phosphate,
• shell,
• fibre,
• alcohol,
• acceptor,
• nutrient,
• mercury,
• bubble,
• molecule,
• portion,
• fertiliser,
• macromolecule,
• rock,
• sugar,
• scaffold,
• lipid,
• solvent,
• phosphorus,
• filler,
• form,
• lubricant,
• polysaccharide,
• powder,
• sediment,
• object,
• carbohydrate,
• carrier,
• mineral,