SimilarityRank
difficult 0.782 2515
a_tricky 0.748 79167
very_difficult 0.745 34974
be_a_tough 0.698 36164
the_most_difficult 0.682 35489
extremely_difficult 0.671 93625
be_a_challenging 0.663 67849
a_challenging 0.654 34700
be_very_difficult 0.650 37607
frustrating 0.642 15978
tricky 0.641 23559
it_be_a_tough 0.633 93393
be_the_most_difficult 0.628 91080
a_tough 0.628 26323
a_complicated 0.625 52032
daunting 0.620 43508
more_difficult 0.610 14322
the_most_challenging 0.608 54484
challenging 0.608 6371
be_not_easy 0.607 17254
arduous 0.595 48005
be_extremely_difficult 0.592 97037
more_challenging 0.579 31394
be_tough 0.571 11759
stressful 0.567 20694