| incipient(adjective, beginning, promising, immature, flowering) |
| immature(adjective, simple, slight, limited, basic) |
| undeveloped(adjective, slight, limited, indefinite, immature) |
| germinal(adjective, cause, beginning, original, promising) |
| inchoate(adjective, beginning, vague, indefinite, immature) |
| primordial(adjective, cause, beginning, first, young) |
| beginning(adjective, beginning, basic, fundamental, promising) |
| initial(adjective, simple, beginning, opening, original) |
| primitive(adjective, cause, simple, beginning, basic) |
| rudimentary(adjective, simple, basic, fundamental, hidden) |
| aboriginal(adjective, cause, beginning, authentic, first) |
| budding(adjective, beginning) |
| early(adjective, simple, beginning, original, basic) |
| original(adjective, cause, beginning, opening, first) |
| primeval(adjective, beginning, authentic, first, previous) |
| nascent(adjective, beginning, opening, original, promising) |
| potential(adjective, promising) |
| elementary(adjective, simple, beginning, original, basic) |
| embryologic |
| embryotic(adjective, cause) |