Modifiers matching appendage:

• conventional,
• biological,
• epidermal,
• distal,
• adult,
• turgid,
• fixed,
• developing,
• flexible,
• diverse,
• epithelial,
• detachable,
• oscillating,
• dermal,
• elastic,
• regular,
• fleshy,
• tough,
• animal,
• rigid,
• injured,
• loose,
• smaller,
• ectodermal,
• mammalian,
• jointed,
• new,
• mechanical,
• complex,
• traditional,
• movable,
• underwater,
• specialized,
• delicate,
• free,
• hard,
• external,
• sensory,
• anatomic,
• major,
• outer,
• small,
• soft,
• related,
• cutaneous,
• inert,
• awkward,
• metal,
• moving,
• light,

Simple categories matching rigid:

• food,
• material,
• surface,
• change,
• architecture,
• container,
• devices,
• alteration,
• fixture,
• appendage,
• object,
• insulation,
• rock,
• element,
• structure,
• measure,
• piece,
• shape,
• sector,
• protein,
• substrate,
• item,
• sphere,
• post,
• panel,
• paper,
• web,
• connection,
• vehicle,
• body,
• bottle,
• obstacle,
• organs,
• adhesive,
• lining,
• transparency,
• representation,
• pipe,
• tubing,
• fabric,
• profile,
• mechanism,
• means,
• layer,
• system,
• wall,
• macromolecule,
• fastener,
• mineral,
• foundation,
• tube,
• particle,
• component,
• class,
• article,
• sheet,
• space,
• foam,
• boundary,
• packing,
• medium,
• base,
• boot,
• fibre,
• construction,
• coil,
• ground,
• part,
• floor,
• document,
• resin,
• pavement,
• hitch,
• thread,
• matter,
• sorbent,
• obstruction,
• cylinder,
• plate,
• gel,
• deposit,
• cover,
• organ,
• feature,
• airfoil,
• luggage,
• instrument,
• portion,
• cloth,
• aggregate,
• matrix,
• product,
• transformation,
• package,
• deck,
• stick,
• covering,
• entity,
• strip,
• watercraft,
• case,
• rod,
• support,
• fixing,
• member,
• metal,
• solid,
• cutoff,
• shaft,
• hanger,
• thermoplastic,
• plant,
• finish,
• group,
• fiber,
• textile,
• instrumentation,
• unit,
• movement,
• display,
• frame,
• tip,
• block,
• filler,
• motion,
• plastic,
• polymer,
• tool,
• connector,
• monomer,
• molecule,
• cement,
• implement,
• carrier,
• substance,
• device,
• armour,
• bed,
• form,
• barrier,
• tissue,
• dressing,
• splint,
• appliance,
• casing,