| acute(adjective, severe, heavy, important, significant) |
| weighty(adjective, great, tough, severe, big) |
| compelling(adjective, important, significant, serious, essential) |
| fateful(adjective, severe, important, lively, significant) |
| indispensable(adjective, important, significant, original, serious) |
| consequential(adjective, big, heavy, important, lively) |
| deciding(adjective, important, decide, critical) |
| all-important(adjective, important, significant, serious, essential) |
| climacteric(adjective, important, critical, acute, safety) |
| determinative(adjective, important, decide, conclusive) |
| desperate(adjective, severe, intense, important, significant) |
| all important(expression, adjective, idiom) |
| cardinal(adjective, important, significant, original, essential) |
| dire(adjective, severe, important, significant, extreme) |
| heavy(adjective, great, tough, severe, extraordinary) |
| high-priority(adjective, important, critical) |
| of the essence(expression, adjective, idiom) |
| primary(adjective, big, important, significant, original) |
| principal(adjective, great, big, important, significant) |
| requisite(adjective, important, significant, original, essential) |