| unsophisticated(adjective, simple, straightforward, basic, unfussy) |
| aboriginal(adjective, pure, head, beginning, prime) |
| bare(adjective, simple, pure) |
| central(adjective, top, important, significant, original) |
| chaste(adjective, simple, pure) |
| clean(adjective, clear, easy, plain, pure) |
| constitutional(adjective, top, important, significant, original) |
| effortless(adjective, clear, light, smooth, simple) |
| facile(adjective, clear, light, smooth, simple) |
| formative(adjective, pure) |
| homely(adjective, simple, clean, plain, pure) |
| initiatory(adjective, beginning, opening, first, initial) |
| intrinsic(adjective, characteristic, important, significant, natural) |
| nascent(adjective, pure, beginning, opening, original) |
| prefatory(adjective, simple, basic) |
| preparatory(adjective, basic, introductory) |
| stark(adjective, pure) |
| unadulterated(adjective, simple, clean, plain, pure) |
| understandable |
| unproblematic |