Answer: slipperier

AnswerCrossword Clue
slipperier(of a person) Evasive and unpredictable; not to be relied on
slipperier(of a surface or object) Difficult to hold firmly or stand on because it is smooth, wet, or slimy
slipperier(of a word or concept) Elusive in meaning because changing according to one's point of view
slipperierSLIPPERY, tending to cause slipping