| infant(adjective, beginning, opening, original, authentic) |
| leadoff(adjective, start, beginning) |
| natal |
| primary(adjective, head, beginning, original, prime) |
| primeval(adjective, head, beginning, original, prime) |
| primogenial(adjective, head, beginning, fresh, original) |
| rudimentary(adjective, head, beginning, fresh, prime) |
| antecedent(adjective, head, beginning, opening, original) |
| autochthonous(authentic, first, previous, initial, earliest) |
| budding |
| creative(adjective, rational, fantastic, original, resourceful) |
| early(adjective, head, beginning, opening, original) |
| elemental |
| foremost(adjective, beginning, opening, original, first) |
| infantile |
| leading(adjective, head, beginning, opening, original) |
| pioneer(adjective, head, beginning, original, prime) |
| primal |
| prime(adjective, head, beginning, opening, original) |
| abecedarian |