Modifiers matching elastomer:

• new,
• synthetic,
• incompressible,
• thermoplastic,
• soft,
• organic,
• unvulcanized,
• flexible,
• good,
• cellular,
• traditional,
• model,
• thermoset,
• polar,
• conventional,
• polymeric,
• common,
• important,
• medical,
• viscous,
• semirigid,
• rubberlike,
• rubbery,
• nonpolar,
• natural,
• base,
• hydrophobic,
• transparent,
• hard,
• compatible,
• sensitive,
• liquid,
• crystalline,
• modern,

Simple categories matching polar:

• surface,
• component,
• group,
• intermediate,
• compound,
• fluid,
• gas,
• portion,
• moiety,
• organism,
• solvent,
• reactant,
• substance,
• base,
• activator,
• unit,
• chemical,
• monomer,
• insulator,
• elastomer,
• solute,
• material,
• substrate,
• hormone,
• liquid,
• impurity,
• radical,
• molecule,
• animal,
• bird,
• polymer,
• ligand,
• drug,
• bond,
• constituent,
• fauna,
• reagent,
• metabolite,
• pesticide,
• derivative,
• diluent,
• mammal,
• fiber,
• contaminant,
• sorbent,
• lipid,
• protein,
• medium,
• resin,
• residue,
• dielectric,
• structure,
• fraction,
• adhesive,
• macromolecule,
• oil,
• atom,
• rubber,
• nutrient,
• region,
• plastic,
• metal,
• contamination,
• lubricant,
• particle,
• volatile,
• solid,