SimilarityRank
a_challenging 0.767 34700
the_most_challenging 0.681 54484
demanding 0.679 32030
exciting 0.678 3121
more_challenging 0.676 31394
difficult 0.670 2515
rewarding 0.653 13905
daunting 0.648 43508
be_a_challenging 0.644 67849
challenge 0.620 222
a_difficult 0.608 12053
thought-provoking 0.600 38729
stressful 0.594 20694
stimulating 0.586 24867
the_most_difficult 0.581 35489
interesting 0.578 1566
thrilling 0.574 30891
inspiring 0.573 5392
tricky 0.573 23559
extremely_difficult 0.566 93625
very_difficult 0.566 34974
fast-paced 0.564 32652
exhilarate 0.561 26910
enjoyable 0.560 8635
engaging 0.556 6449