| memorable(important, significant, historic, super-duper, mind-bending) |
| necessary(big, significant, substantial, valuable, vital) |
| of note(expression, big, significant, substantial, valuable) |
| of substance(expression, big, significant, substantial, valuable) |
| outstanding(important, significant, historic) |
| paramount(significant, vital, imperative) |
| ponderous(big, significant, substantial, valuable, vital) |
| pressing(big, significant, substantial, valuable, vital) |
| primary(big, significant, substantial, valuable, vital) |
| principal(big, significant, substantial, valuable, vital) |
| relevant(big, significant, substantial, valuable, vital) |
| salient(big, significant, substantial, valuable, vital) |
| serious(big, significant, substantial, valuable, vital) |
| signal(significant, vital, imperative) |
| significant(big, important, substantial, valuable, vital) |
| something(big, significant, substantial, valuable, vital) |
| standout(big, significant, substantial, valuable, vital) |
| substantial(big, important, significant, valuable, vital) |
| urgent(big, significant, substantial, valuable, vital) |
| valuable(big, significant, substantial, vital, imperative) |