| undeveloped(adjective, simple, coarse, natural, straightforward) |
| basic(adjective, hard, start, simple, plain) |
| elementary(adjective, start, simple, plain, important) |
| fundamental(adjective, simple, plain, important, head) |
| primitive(adjective, simple, plain, important, coarse) |
| vestigial(adjective, simple, fresh, crude, basic) |
| imperfect(adjective, inadequate, deficient, incomplete, wanting) |
| primary(adjective, simple, plain, important, head) |
| rudimental(adjective, start, simple, coarse, crude) |
| elemental(adjective, simple, plain, important, significant) |
| embryonic(adjective, simple, basic, fundamental, hidden) |
| immature(adjective, simple, natural, basic, fundamental) |
| initial(adjective, simple, plain, head, beginning) |
| underlying(adjective, simple, plain, important, significant) |
| incipient(adjective, head, beginning, fresh, original) |
| beginning(noun, adjective, start, simple, plain) |
| crude(adjective, natural, unrefined) |
| essential(adjective, simple, plain, important, significant) |
| first(adjective, order, important, significant, fresh) |
| rough(adjective, simple, coarse, natural, inadequate) |