Modifiers matching sailor:

• stern,
• disobedient,
• loyal,
• dashing,
• short-tempered,
• tyrannical,
• repressed,
• insolent,
• idealistic,
• commanding,
• daring,
• spirited,
• rebellious,
• authoritarian,
• egotistical,
• principled,
• blasphemous,
• rigid,
• strong,
• bold,
• tenacious,
• brave,
• resentful,
• haughty,
• unsophisticated,
• unsympathetic,
• heroic,
• uneducated,
• defiant,

Simple categories matching rigid:

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