slippery, perilous, icy, unpassable, dangerous, bumpy, impassable, tricky, muddy, slushy, dicey, unforgiving, inhospitable, hazardous, torturous, snowy, stormy, impassible, rutted, rutty, windy, unnavigable, unstable, hellish, wintry, slippy, rocky, rough, untrodden, tortuous, gusty, pathless, difficult, unclimbable, boggy, foggy, frigid, unpredictable, soggy, blowy, roaring forties, miserable, wet, sleety, inclement, precarious, diabolical, arduous, atrocious, squally, snaky, harrowing, challenging, mucky, turbulent, uncharted, twisty, sodden, slicken, brutal, uphill, chilly, grueling, nightmarish, murky, blustery, choppy, foolhardy, slick, wicked, unpleasant, circuitous, hilly, terrifying, wintery, unploughed, devilish, daunting, waterlogged, soupy, desolate, risky, brave, torrential, fearsome, merciless, tough, unchartered, steep, sandy, serpentine, mountainous, gnarly, traversable, zigzag, watery, erratic, chilkoot pass, horrendous, balmier, unfriendly, ungroomed, perfidious, dastardly, traitorous, villainous, cowardly, deceitful, despicable, ungenerous, revengeful, cruel, dishonourable, magnanimous, execrable, fickle, murderous, vengeful, detestable

assassin, assassinator, bravo, dastardliness, faithlessness, falseness, fickleness, foul play, inconstancy, perfidious, punic, quicksand, snake, snake in the grass, villainy, yellow

unfaithful, unreliable, unsafe