| rudimentary(adjective, important, significant, original, basic) |
| seminal(adjective, generative) |
| symbiotic(useful, beneficial, advantageous) |
| dangerous(adjective, great, severe, significant, serious) |
| aboriginal |
| accessible(useful, running, beneficial, working, advantageous) |
| basal(adjective, important, significant, original, essential) |
| big(heavy, important, significant, substantial, valuable) |
| bottom-line(adjective, important, significant, original, essential) |
| burning(adjective, important, serious, essential, critical) |
| categorical |
| charged |
| compulsory(adjective, important, significant, essential, critical) |
| considerable(adjective, big, heavy, important, powerful) |
| constitutional(adjective, important, significant, original, basic) |
| critic |
| definitive(adjective, significant, last, definite, critical) |
| dominant |
| elemental(adjective, important, significant, original, essential) |
| eminent(adjective, important) |