| imperative(big, significant, substantial, valuable, vital) |
| importunate(big, significant, substantial, valuable, vital) |
| influential(significant, vital, imperative) |
| large(big, significant, substantial, valuable, vital) |
| marked(big, significant, substantial, valuable, vital) |
| material(big, significant, substantial, valuable, vital) |
| meaningful(big, significant, substantial, valuable, vital) |
| momentous(big, significant, substantial, valuable, vital) |
| necessary(big, significant, substantial, valuable, vital) |
| of moment(expression, big, significant, substantial, valuable) |
| of note(expression, big, significant, substantial, valuable) |
| of substance(expression, big, significant, substantial, valuable) |
| 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) |