| original(adjective, important, significant, fresh, essential) |
| primary(adjective, rough, important, significant, original) |
| fundamental(adjective, simple, rough, important, original) |
| primitive(adjective, important, significant, original, essential) |
| authentic(adjective, first, previous, initial, earliest) |
| elementary(adjective, rough, important, significant, fresh) |
| first(adjective, rough, important, significant, fresh) |
| firsthand |
| imaginative |
| novel |
| prime(adjective, important, significant, original, essential) |
| at first hand(expression, idiom) |
| avant-garde |
| axiological(adjective, important, significant, original, essential) |
| axiomatic(adjective, important, significant, original, basic) |
| basal(adjective, important, significant, fresh, original) |
| basic(adjective, simple, rough, important, significant) |
| beginning(adjective, authentic, first, previous, initial) |
| bottom(adjective, important, significant, original, essential) |
| bottom-line(adjective, important, significant, original, essential) |