Antonyms of adj slippery

2 senses of slippery

Sense 1
slippery (vs. nonslippery), slippy -- (causing or tending to cause things to slip or slide; "slippery sidewalks"; "a slippery bar of soap"; "the streets are still slippy from the rain")

nonslippery (vs. slippery) -- (not slippery; not likely to slip or skid)
        => nonskid -- (designed to reduce or prevent skidding; "nonskid tires")
        => nonslip -- (designed to reduce or prevent slipping; "a nonslip surface")

Sense 2
slippery, tricky -- (not to be trusted; "how extraordinarily slippery a liar the camera is"- James Agee)

INDIRECT (VIA untrustworthy) -> trustworthy, trusty -- (worthy of trust or belief; "a trustworthy report"; "an experienced and trustworthy traveling companion")

Similarity of adj slippery

2 senses of slippery

Sense 1
slippery (vs. nonslippery), slippy -- (causing or tending to cause things to slip or slide; "slippery sidewalks"; "a slippery bar of soap"; "the streets are still slippy from the rain")
       => lubricious -- (having a smooth or slippery quality; "the skin of cephalopods is thin and lubricious")
       => nonstick -- ((of surfaces especially of cooking utensils) permitting easy removal of adherent food particles; "a frying pan with a nonstick surface")
       => slick -- (made slick by e.g. ice or grease; "sidewalks slick with ice"; "roads are slickest when rain has just started and hasn't had time to wash away the oil")
       => sliding -- (being a smooth continuous motion)
       => slimed, slimy -- (covered with or resembling slime; "a slimy substance covered the rocks")
       => slipping, slithering -- (moving as on a slippery surface; "his slipping and slithering progress over the ice")
       => slithery -- (having a slippery surface or quality ; "slithery mud"; "slithery eels")
          Also See-> smooth#1

Sense 2
slippery, tricky -- (not to be trusted; "how extraordinarily slippery a liar the camera is"- James Agee)
       => untrustworthy (vs. trustworthy), untrusty -- (not worthy of trust or belief; "an untrustworthy person")

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