SimilarityRank
stiffen 0.602 45494
tough 0.601 4367
tighten 0.582 11050
soften 0.580 16474
tighten_up 0.575 67530
a_tough 0.551 26323
harden 0.550 20332
loosen 0.539 22359
beef_up 0.497 62599
more_stringent 0.497 92552
stiff 0.495 16121
to_soften 0.494 57760
toughness 0.484 38385
strengthened 0.478 83553
harsh 0.467 10084
temper 0.466 15044
stringent 0.462 42883
hardened 0.452 57030
be_tough 0.449 11759
strengthen 0.448 1847
strict 0.445 10958
weaken 0.444 7179
unyielding 0.439 87458
crack_down_on 0.437 46572
freezing 0.436 17259