| helpful(adjective, useful, valuable, effective, beneficial) |
| high-up(adjective, importance, valuable, main, notable) |
| highest(adjective, rank, post, status, main) |
| illustrious(adjective, outstanding, prominent, remarkable, notable) |
| impactful |
| index(noun, feature, characteristic, information, mark) |
| indicatory(adjective, characteristic, representative, telling, ominous) |
| key-note(adjective, importance, valuable, main, notable) |
| landmark(momentous, milestone) |
| meaty |
| meritorious |
| moving(strong, open, important, powerful, sensitive) |
| obvious(adjective, clear, substantial, definite, evident) |
| older(adjective, rank, post, status, age) |
| patent(adjective, clear, unusual, important, exceptional) |
| plentiful(adjective, comfort, rich, well, convenient) |
| potent(adjective, clear, strong, important, powerful) |
| pre-eminent |
| probative |
| prodigious(adjective, extraordinary, unusual, important, strange) |