| important(adjective, outstanding, significant, substantial) |
| material(noun, thing, substance, important) |
| essential(adjective, important, significant, substantial) |
| meaningful(adjective, important, significant, substantial) |
| noteworthy(important, outstanding, significant, substantial) |
| relevant(significant, substantial, valuable, vital) |
| significant(adjective, important, substantial, large) |
| consequential(important, significant, substantial, large) |
| considerable(adjective, significant, substantial, large) |
| critical(adjective, outstanding, significant, substantial) |
| crucial(adjective, outstanding, significant, substantial) |
| decisive(outstanding, significant, substantial, valuable) |
| determining(significant, substantial, valuable, vital) |
| distinguished(adjective, important, outstanding, significant) |
| doozie(adjective, important, outstanding, significant) |
| dynamite(important, significant, substantial, large) |
| earnest(significant, substantial, valuable, vital) |
| exceptional(adjective, significant, substantial, valuable) |
| exigent(significant, substantial, valuable, vital) |
| extensive(significant, substantial, large, valuable) |