slier

Harder to catch

Slier is the comparative form of sly—more cunning, more crafty, more given to stealthy maneuvering: Each round of negotiations made him slier than before.

Also spelled slyer.

cunning

craftier

More sly and scheming

stealthy

sneakier

More covert in manner

deceptive

trickier

More difficult to handle

Opposites
cleverness in deception

slierdumber

More lacking in intellect

Family

sliest

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G