Modifiers matching hydrocarbon:

• aromatic,
• intermediate,
• lighter,
• commercial,
• light,
• hard,
• small,
• gaseous,
• linear,
• soluble,
• acyclic,
• saturated,
• volatile,
• supercritical,
• liquid,
• neutral,
• simple,
• minor,
• aliphatic,
• stable,
• ordinary,
• useful,
• organic,
• flammable,
• nitrogenous,
• underground,
• vaporizable,
• inert,
• typical,
• toxic,
• base,
• cyclic,
• floating,
• alternative,
• unsaturated,
• residual,
• airborne,
• regulated,
• bound,
• fluid,
• dark,
• frozen,
• familiar,
• clean,
• basic,
• conventional,
• refined,
• molecular,
• heavy,
• dissolved,
• hydrophobic,
• reactive,
• conjugated,
• single,
• carcinogenic,
• main,
• lower,
• synthetic,
• nonpolar,
• desirable,
• individual,
• acetylenic,
• important,
• industrial,
• common,
• polygonal,
• dilute,
• complicated,
• complex,
• dangerous,
• valuable,
• natural,
• planar,
• greasy,
• cheap,
• combustible,
• liquefied,
• liquifiable,
• heavier,
• model,
• hazardous,
• solid,
• pure,
• available,
• essential,
• viscous,
• particular,

Simple categories matching synthetic:

• grease,
• material,
• gum,
• fabric,
• wig,
• sound,
• unit,
• opiate,
• fibre,
• drug,
• steroid,
• polymer,
• plastic,
• wax,
• contaminant,
• document,
• chemical,
• gemstone,
• product,
• stone,
• ligand,
• abrasive,
• lubricant,
• ingredient,
• work,
• fleece,
• textile,
• carbon,
• gem,
• thing,
• fiber,
• silicate,
• structure,
• object,
• intermediate,
• pianoforte,
• nutrient,
• precursor,
• latex,
• medicine,
• substrate,
• antimalarial,
• agonist,
• nsaid,
• event,
• progesterone,
• cosmetic,
• ester,
• rope,
• medium,
• membrane,
• siding,
• molecule,
• compound,
• papers,
• elastomer,
• solvent,
• glove,
• fuel,
• filler,
• cortisone,
• antimicrobial,
• vector,
• fumigant,
• anticoagulant,
• antidepressant,
• yarn,
• foam,
• pigment,
• instrument,
• scale,
• peptide,
• enzyme,
• micronutrient,
• progestogen,
• anesthetic,
• stimulant,
• clothes,
• condition,
• cortisol,
• flavoring,
• graphite,
• system,
• particle,
• fertiliser,
• surface,
• macromolecule,
• cloth,
• oil,
• pesticide,
• hallucinogen,
• starch,
• fertilizer,
• androgen,
• component,
• fluid,
• equipment,
• crystal,
• reaction,
• paint,
• solid,
• food,
• flooring,
• pharmaceutical,
• aggregate,
• insecticide,
• sweetener,
• part,
• clothing,
• progestin,
• estrogen,
• gas,
• insulator,
• cure,
• phenomenon,
• bristle,
• input,
• oestrogen,
• resin,
• herbicide,
• diamond,
• entity,
• corticosteroid,
• glucocorticoid,
• copolymer,
• painkiller,
• source,
• opal,
• process,
• medication,
• frame,
• amphetamine,
• layer,
• agent,
• activity,
• item,
• sedative,
• hydrocarbon,
• glue,
• mineral,
• carrier,
• leather,
• filament,
• narcotic,
• undergarment,
• polyamide,
• antibiotic,
• coating,
• equity,
• antagonist,
• adhesive,
• lacquer,
• penicillin,
• hormone,
• topaz,
• oxide,
• nature,
• preservative,
• substance,
• gene,