| inorganic(adjective, artificial, unnatural, chemical, man-made) |
| artificial(adjective, chemical, man-made, inorganic, mineral) |
| unnatural(adjective, inorganic, artificial, chemical, man-made) |
| man-made(adjective, inorganic, artificial, unnatural, chemical) |
| inessential(adjective, inorganic, characteristic, quality, unimportant) |
| synthetic(adjective, mineral, artificial, chemical, man-made) |
| functional(adjective, characteristic, quality, artificial, unnatural) |
| mineral(adjective, artificial, chemical, man-made, inorganic) |
| robot(noun, adjective, characteristic, quality, extra) |
| accessory(adjective, inorganic, characteristic, quality, unimportant) |
| auxiliary(adjective, inorganic, characteristic, quality, unimportant) |
| extra(adjective, inorganic, characteristic, quality, unimportant) |
| minor(adjective, inorganic, characteristic, quality, unimportant) |
| secondary(adjective, inorganic, characteristic, quality, unimportant) |
| trivial(adjective, inorganic, characteristic, quality, unimportant) |
| unimportant(adjective, inorganic, characteristic, quality, artificial) |
| unnecessary(adjective, inorganic, characteristic, quality, unimportant) |
| chemical(adjective, characteristic, quality, artificial, unnatural) |
| fabricated(adjective, mineral, artificial, chemical, man-made) |
| inanimate(adjective, characteristic, quality, mineral, artificial) |