| fundamental(adjective, body, simple, plain, material) |
| basic(adjective, body, simple, plain, material) |
| essential(adjective, characteristic, body, simple, plain) |
| elementary(adjective, simple, plain, pure, important) |
| primary(adjective, body, simple, plain, material) |
| intrinsic(adjective, characteristic, start, important, significant) |
| underlying(adjective, simple, plain, important, significant) |
| inherent(adjective, characteristic, body, start, material) |
| innate(adjective, characteristic, body, start, material) |
| inborn(adjective, characteristic, start, complete, essential) |
| prime(adjective, body, material, pure, important) |
| primitive(adjective, body, simple, plain, material) |
| basal(adjective, body, simple, plain, material) |
| deep-seated(adjective, characteristic, original, essential, basic) |
| inbred(adjective, characteristic, start, complete, essential) |
| constitutional(adjective, characteristic, body, start, material) |
| radical(adjective, important, significant, original, essential) |
| cardinal(adjective, important, significant, original, essential) |
| central(adjective, important, significant, original, essential) |
| chief(adjective, essential, fundamental, principal) |