1. 滑/滑头：slipperily /滑地/ | slipperiness /滑/滑头/ | slippers /便鞋/拖鞋/屣/

2. 滑头：slipperily 滑地 | slipperiness 滑头 | slippers 屣

noun

1. the quality of being a slippery rascal

Synonym: rascalityshiftinesstrickiness

2. a slippery smoothness

e.g. he could feel the slickness of the tiller

Synonym: slicknessslickslip