| decisive(important, significant, substantial, valuable) |
| definite(adjective, significant, substantial, real) |
| heavy(adjective, strong, hard, important) |
| heavyweight(heavy, significant, substantial, large) |
| necessary(adjective, significant, substantial, valuable) |
| worthwhile(adjective, strong, solid, important) |
| chief(significant, substantial, valuable, vital) |
| dense(adjective, strong, hard, heavy) |
| determining(significant, substantial, valuable, vital) |
| distinguished(important, significant, substantial, large) |
| doozie(important, significant, substantial, large) |
| dynamite(important, significant, substantial, large) |
| exigent(significant, substantial, valuable, vital) |
| extensive(significant, substantial, large, valuable) |
| fab(important, significant, substantial, large) |
| far-reaching(important, significant, substantial, valuable) |
| fat(heavy, important, significant, substantial) |
| front-page(significant, substantial, valuable, vital) |
| hefty(adjective, strong, hard, solid) |
| imperative(adjective, significant, substantial, valuable) |