slippery
slip-per-y
adjective
Difficult to hold, stand on, or move over due to being smooth, wet, or oily.
"The wet pavement was very slippery."
adjective
Difficult to catch, deal with, or trust; evasive or unreliable.
"He's a slippery character, watch out."
Thesaurus
Synonyms: tricky, untrusty, untrustworthy, slimed, lubricious, slick, nonstick, slithery, slipping, sliding, slimy, slithering
Antonyms: nonslippery