SimilarityRank
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