| important(adjective, great, tough, severe, extraordinary) |
| critical(adjective, great, severe, extraordinary) |
| vital(adjective, great, severe, heavy) |
| essential(adjective, severe, important, significant) |
| urgent(adjective, tough, severe, heavy) |
| momentous(adjective, great, tough, severe, extraordinary) |
| serious(adjective, great, severe, extraordinary) |
| necessary(adjective, important, significant, original) |
| imperative(adjective, important, determined, significant) |
| significant(adjective, great, tough, severe, extraordinary) |
| decisive(adjective, great, severe, extraordinary) |
| grave(adjective, great, tough, severe) |
| pressing(adjective, tough, severe, heavy) |
| weighty(adjective, great, tough, severe) |
| consequential(adjective, heavy, important, lively) |
| heavy(adjective, great, tough, severe, extraordinary) |
| primary(adjective, important, significant, original) |
| principal(adjective, great, important, significant) |
| exigent(adjective, heavy, important, significant) |
| severe(adjective, tough, heavy, deep) |