Answer: slickest

AnswerCrossword Clue
SLICKESTHardest to catch
SLICKESTMost cunning
slickest(of an action or thing) Done or operating in an impressively smooth, efficient, and apparently effortless way
slickest(of skin or hair) Smooth and glossy
slickest(of a thing) Superficially impressive or efficient in presentation
slickest(of a person or their behavior) Adroit or clever; glibly assured
slickest(of a surface) Smooth, wet, and slippery
slickestSLICK, smooth and slippery