KEY: Slippery.
SYN: Smooth, glassy, lubricated, insecure, perilous, unsafe, unstable, shifty, elusive, shuffling, unprincipled, deceptive, evasive, untrustworthy, uncertain.
ANT: Rough, firm, unslippery, secure, safe, stable, solid, trustworthy.
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KEY: Slough.
SYN: Mire, difficulty, despond.
ANT: Footing, standpoint.
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KEY: Slovenly.
SYN: Loose, negligent, disorderly, untidy, unclean, sluttish, slatternly.