| Similarity | Rank | |
|---|---|---|
| very_difficult | 0.809 | 34974 |
| difficult | 0.771 | 2515 |
| be_very_difficult | 0.696 | 37607 |
| be_extremely_difficult | 0.694 | 97037 |
| more_difficult | 0.677 | 14322 |
| a_difficult | 0.671 | 12053 |
| ,_if_not_impossible | 0.627 | 78666 |
| impossible | 0.626 | 8196 |
| the_most_difficult | 0.617 | 35489 |
| arduous | 0.587 | 48005 |
| be_the_most_difficult | 0.585 | 91080 |
| be_not_easy | 0.579 | 17254 |
| difficult_for | 0.577 | 44678 |
| the_most_challenging | 0.573 | 54484 |
| time-consuming | 0.573 | 22450 |
| tricky | 0.569 | 23559 |
| daunting | 0.567 | 43508 |
| challenging | 0.566 | 6371 |
| perilous | 0.564 | 65016 |
| more_challenging | 0.563 | 31394 |
| be_not_an_easy_task | 0.553 | 79512 |
| time_consuming | 0.550 | 21184 |
| it_be_difficult | 0.548 | 31149 |
| laborious | 0.547 | 65252 |
| complicated | 0.544 | 9149 |