| important(adjective, strong, great, extraordinary, unusual) |
| major(adjective, great, important, large, serious) |
| heavyweight(adjective, great, informal, extraordinary, important) |
| serious(adjective, great, extraordinary, unusual, important) |
| significant(adjective, strong, great, extraordinary, unusual) |
| big-league(adjective, great, excellent, informal, important) |
| big-time(adjective, outstanding, worthy, notable, eminent) |
| blue-chip(adjective, excellent, important, large) |
| crucial(adjective, great, extraordinary, important, outstanding) |
| great(adjective, extraordinary, important, outstanding, serious) |
| big(significant, large, considerable) |
| substantial(adjective, strong, important, powerful, significant) |
| consequential(significant, large, considerable) |
| considerable(significant, large) |
| heavy(adjective, great, solid, informal, extraordinary) |
| meaningful(adjective, strong, great, extraordinary, unusual) |
| notable(adjective, great, solid, extraordinary, unusual) |
| big-name |
| bigtime(adjective, informal, important) |
| bigwig |