| fundamental(adjective, body, simple, plain, material) |
| basic(adjective, body, simple, plain, material) |
| essential(adjective, characteristic, body, simple, plain) |
| elementary(adjective, simple, plain, pure, important) |
| organic(adjective, important, natural, original, basic) |
| primary(adjective, body, simple, plain, material) |
| intrinsic(adjective, characteristic, start, important, significant) |
| integral(adjective, complete, simple, important, natural) |
| underlying(adjective, simple, plain, important, significant) |
| inherent(adjective, characteristic, body, start, material) |
| innate(adjective, characteristic, body, start, material) |
| simple(adjective, pure, straightforward, whole, basic) |
| ingrained(adjective, characteristic, start, complete, intimate) |
| component(adjective, essential, basic, vital, component) |
| constituent(adjective, part, essential, basic, vital) |
| inborn(adjective, characteristic, start, complete, essential) |
| prime(adjective, body, material, pure, important) |
| primal(adjective, pure) |
| primitive(adjective, body, simple, plain, material) |
| primordial(adjective, important, significant, original, basic) |