| significant(adjective, substantial, main, importance, valuable) |
| crucial(adjective, characteristic, great, severe, significant) |
| momentous(adjective, significant, substantial, valuable, importance) |
| essential(adjective, substantial, valuable, main, importance) |
| critical(adjective, characteristic, great, significant, serious) |
| vital(adjective, essential, importance, characteristic, significant) |
| major(adjective, great, exceptional, significant, essential) |
| consequential(adjective, significant, importance, big, substantial) |
| noteworthy(adjective, outstanding, worthy, characteristic, great) |
| notable(adjective, noun, famous, exceptional, outstanding) |
| influential(adjective, powerful, substantial, notable, importance) |
| prominent(adjective, famous, outstanding, eminent, characteristic) |
| serious(adjective, substantial, crucial, great, importance) |
| weighty(adjective, significant, strong, substantial, importance) |
| eminent(adjective, great, excellent, famous, prominent) |
| grave(adjective, substantial, crucial, severe, importance) |
| famous(adjective, outstanding, great, exceptional, significant) |
| outstanding(adjective, main, notable, striking, excellent) |
| distinguished(adjective, outstanding, great, excellent, famous) |
| leading(adjective, powerful, significant, essential, main) |