| Similarity | Rank | |
|---|---|---|
| obstacle_to | 0.774 | 24862 |
| impediment | 0.732 | 55075 |
| barrier_to | 0.708 | 14296 |
| obstacle | 0.596 | 6103 |
| hindrance | 0.585 | 75030 |
| these_barrier | 0.572 | 81673 |
| impede | 0.552 | 18848 |
| barrier_that | 0.551 | 34545 |
| a_barrier_to | 0.535 | 57746 |
| roadblock | 0.528 | 30013 |
| barrier | 0.518 | 3906 |
| hurdle | 0.517 | 14338 |
| hinder | 0.504 | 12928 |
| bottleneck | 0.487 | 19640 |
| difficulty_in | 0.482 | 10456 |
| the_major_challenge | 0.481 | 66525 |
| path_toward | 0.477 | 99667 |
| threat_to | 0.475 | 8492 |
| major_challenge | 0.475 | 94021 |
| the_great_challenge | 0.474 | 32862 |
| limitation | 0.473 | 4100 |
| great_challenge | 0.467 | 59535 |
| limitation_on | 0.462 | 26818 |
| that_inhibit | 0.462 | 82575 |
| challenge_associate_with | 0.462 | 61107 |