Modifiers matching resin:

• commercial,
• thermosetting,
• natural,
• transparent,
• corrosive,
• polymeric,
• synthetic,
• industrial,
• tough,
• nonpolar,
• organic,
• clear,
• aromatic,
• plastic,
• solid,
• available,
• biodegradable,
• unsaturated,
• thermoset,
• common,
• diverse,
• precious,
• new,
• optical,
• base,
• soft,
• functional,
• neutral,
• liquid,
• polar,
• colored,
• hard,
• inflammable,
• expensive,
• artificial,
• solidified,
• residual,
• softer,
• hydrophilic,
• hydrophobic,
• hygroscopic,
• secondary,
• suitable,
• practical,
• conventional,
• standard,
• mixed,
• soluble,
• brittle,
• viscous,
• structural,
• resinous,
• crystalline,
• inert,
• fibrous,
• flexible,
• resistant,
• reactive,
• sticky,
• fragrant,
• adsorbent,
• alternative,
• noncrystalline,
• amorphous,
• sensitive,
• traditional,
• stable,
• binding,
• harder,
• raw,
• ordinary,
• harsh,
• modern,
• typical,
• insoluble,
• thermal,
• over,
• dissolved,
• toxic,
• rigid,
• homogeneous,

Simple categories matching tough:

• coating,
• herb,
• material,
• stain,
• rock,
• annual,
• part,
• exercise,
• surface,
• substance,
• vegetable,
• contaminant,
• food,
• job,
• iron,
• toy,
• topic,
• bronze,
• fish,
• issue,
• vine,
• area,
• fibre,
• subject,
• plastic,
• group,
• shrub,
• soil,
• tissue,
• metal,
• hardwood,
• appendage,
• junk,
• condition,
• meat,
• polymer,
• residue,
• spice,
• perennial,
• wood,
• resin,
• times,
• state,
• item,
• animal,
• plant,
• alloy,
• fruit,
• object,
• stone,
• thing,
• paper,
• stuff,
• location,
• substrate,
• decision,
• situation,
• structure,
• seed,
• hide,
• fabric,
• industry,
• case,
• fiber,
• sheet,
• solid,
• grass,
• application,
• workwear,
• leaf,
• tile,
• veggie,
• textile,