| introductory(adjective, head, beginning, fresh, original) |
| key(adjective, head, beginning, opening, original) |
| lead off(expression, adjective, head, beginning, fresh) |
| leading(adjective, head, beginning, opening, original) |
| least(adjective, head, beginning, opening, original) |
| numero uno(expression, adjective, head, beginning, fresh) |
| opening(adjective, head, beginning, original, prime) |
| original(adjective, head, beginning, opening, fresh) |
| pioneer(adjective, head, beginning, opening, original) |
| premier(adjective, head, beginning, fresh, original) |
| primary(adjective, head, beginning, opening, original) |
| prime(adjective, head, beginning, opening, original) |
| primeval(adjective, head, beginning, opening, original) |
| primitive(adjective, head, beginning, opening, original) |
| primogenial(adjective, head, beginning, fresh, original) |
| primordial(adjective, head, beginning, opening, original) |
| pristine(adjective, head, beginning, opening, original) |
| rudimentary(adjective, head, beginning, fresh, original) |
| slightest(adjective, head, beginning, opening, original) |
| smallest(adjective, head, beginning, opening, original) |