Modifiers matching fuel:

• convenient,
• solid,
• major,
• discrete,
• liquid,
• common,
• oxidizable,
• combustible,
• nonrenewable,
• unconventional,
• nuclear,
• medical,
• automotive,
• organic,
• lighter,
• gaseous,
• explosive,
• intermediate,
• difficult,
• motor,
• light,
• unwanted,
• vegetative,
• complex,
• wet,
• abundant,
• small,
• heavier,
• conventional,
• available,
• specialized,
• traditional,
• special,
• hard,
• physiological,
• off,
• base,
• friendly,
• vehicular,
• thinner,
• appropriate,
• single,
• ordinary,
• extra,
• dense,
• nonwoody,
• particular,
• renewable,
• primary,
• mundane,
• real,
• soluble,
• standard,
• commercial,
• possible,
• abrasive,
• basic,
• indigenous,
• foreign,
• finished,
• dead,
• consumable,
• old,
• nonpolar,
• heavy,
• fine,
• useful,
• local,
• important,
• reactive,
• granular,
• raw,
• volatile,
• inexpensive,
• natural,
• thermal,
• simple,
• regular,
• harmful,
• benign,
• unhealthy,
• vaporizable,
• corrosive,
• separate,
• practical,
• carbonaceous,
• uniform,
• up,
• efficient,
• supporting,
• fluid,
• expensive,
• metabolic,
• actual,
• auxiliary,
• technical,
• unprocessed,
• sensitive,
• domestic,
• inflammable,
• secondary,
• particulate,
• compressed,
• dangerous,
• cleaner,
• fibrous,
• valuable,
• competitive,
• toxic,
• artificial,
• indoor,
• odd,
• direct,
• miscellaneous,
• needed,
• herbaceous,
• safe,
• starting,
• taxable,
• cryogenic,
• costly,
• precious,
• suitable,
• essential,
• supplemental,
• dirty,
• dirtier,
• porous,
• propellant,
• compressible,
• usable,
• innovative,
• powdered,
• dry,
• alternative,
• modern,
• strategic,
• homogeneous,
• several,
• exotic,
• advanced,
• residual,
• rich,
• cheap,
• supplementary,
• biological,
• beneficial,
• smaller,
• damaging,
• normal,
• inhomogeneous,
• pure,
• hazardous,
• clean,
• residential,
• diverse,
• future,
• loose,
• environmental,
• destructive,
• desirable,
• industrial,
• individual,
• macromolecular,
• commonplace,
• refined,
• familiar,
• typical,
• down,
• key,
• ignitable,
• synthetic,
• flammable,
• new,
• main,
• chemical,
• sustainable,
• manufactured,

Simple categories matching supplementary:

• section,
• subject,
• substance,
• arms,
• feed,
• event,
• measure,
• nature,
• import,
• material,
• work,
• food,
• examination,
• development,
• means,
• report,
• drink,
• form,
• content,
• information,
• fluid,
• lighting,
• part,
• expense,
• item,
• source,
• coating,
• fastener,
• document,
• ingredient,
• product,
• coagulant,
• sessions,
• drawing,
• nutrient,
• activity,
• service,
• micronutrient,
• stuff,
• analysis,
• liquid,
• data,
• fuel,
• oil,
• equipment,
• procedure,
• staple,