SimilarityRank
more_difficult 0.778 14322
challenging 0.676 6371
more_complicated 0.659 25563
more_complex 0.654 11548
difficult 0.653 2515
the_most_challenging 0.604 54484
more_interesting 0.593 15748
a_challenging 0.582 34700
a_difficult 0.579 12053
more_exciting 0.579 44807
tricky 0.571 23559
harder 0.569 27866
more_important 0.566 11392
the_most_difficult 0.565 35489
extremely_difficult 0.563 93625
very_difficult 0.563 34974
more_relevant 0.551 38074
more_dangerous 0.550 40622
daunting 0.549 43508
harder_to 0.544 86185
the_great_challenge 0.540 32862
more_significant 0.537 44702
tough 0.532 4367
be_a_challenging 0.531 67849
more_diverse 0.530 46820