Modifiers matching hydrocarbon:

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

Simple categories matching pure:

• metal,
• material,
• monosaccharide,
• soul,
• carbon,
• fat,
• content,
• fibre,
• substance,
• nutrient,
• gas,
• chemistry,
• tradition,
• commodity,
• compound,
• wool,
• chemical,
• halide,
• carotenoid,
• carbide,
• hydrocarbon,
• alkane,
• connection,
• proteinase,
• component,
• science,
• quality,
• form,
• semiconductor,
• product,
• bread,
• food,
• fabrication,
• opiate,
• protein,
• alcohol,
• herb,
• set,
• substrate,
• shape,
• sorbent,
• phase,
• emotion,
• disaccharide,
• pt,
• oxide,
• feeling,
• mineral,
• arts,
• abstraction,
• system,
• textile,
• cluster,
• alpha-blocker,
• motivation,
• elements,
• silver,
• conductor,
• preparation,
• fruit,
• analgesic,
• element,
• computation,
• halogen,
• flavoring,
• information,
• ore,
• hydrogen,
• complaint,
• atmosphere,
• translation,
• color,
• polysaccharide,
• source,
• propellent,
• drug,
• fertilizer,
• crystal,
• toxemia,
• clay,
• state,
• necessity,
• object,
• solvent,
• smell,
• spirits,
• notion,
• surface,
• extract,
• meat,
• mind,
• entertainment,
• manure,
• sound,
• contaminant,
• mathematics,
• dielectric,
• nut,
• activity,
• thing,
• art,
• item,
• theory,
• entity,
• narcotic,
• sugar,
• fabric,
• discipline,
• glass,
• economics,
• phenol,
• water,
• antipyretic,
• oil,
• analysis,
• fiber,
• worship,
• disorder,
• oxygen,
• solid,
• study,
• salt,
• gem,
• butter,
• dish,
• cathode,
• starch,
• whimsy,
• fuel,
• molecule,
• biology,
• liquid,
• waste,
• plant,
• enjoyment,
• matter,
• placebo,
• idea,
• odour,
• nitride,
• speech,
• drink,
• concept,
• ingredient,
• agonist,
• carbohydrate,
• enzyme,
• fluid,
• precipitate,
• subject,
• essence,
• powder,