| Similarity | Rank | |
|---|---|---|
| hard | 0.791 | 1452 |
| really_hard | 0.788 | 64966 |
| be_very_hard | 0.715 | 91214 |
| very_difficult | 0.650 | 34974 |
| harder | 0.644 | 27866 |
| hard_as | 0.621 | 79740 |
| difficult | 0.619 | 2515 |
| as_hard | 0.614 | 19691 |
| so_hard | 0.608 | 47049 |
| be_tough | 0.586 | 11759 |
| get_hard | 0.574 | 65510 |
| be_very_difficult | 0.572 | 37607 |
| tough | 0.567 | 4367 |
| not_easy | 0.556 | 65092 |
| a_difficult | 0.553 | 12053 |
| rough | 0.543 | 7325 |
| too_hard | 0.541 | 70675 |
| be_a_tough | 0.537 | 36164 |
| Hard | 0.522 | 23361 |
| painful | 0.514 | 7134 |
| it_be_difficult | 0.513 | 31149 |
| be_extremely_difficult | 0.511 | 97037 |
| extremely_difficult | 0.511 | 93625 |
| so_bad | 0.505 | 49015 |
| how_hard | 0.505 | 85048 |