sly Scrabble^® Dictionary

adjective

slier, sliest or slyer, slyest

crafty

(adverb) slyly

2 Playable Words can be made from "SLYLY"

The Merriam-Webster
Unabridged Dictionary

Online access to a
legendary resource
Log In or Sign Up »

Our Dictionary,
On Your Devices

Merriam-Webster,
With Voice Search
Get the Free Apps! »

The Official SCRABBLE^®
Players Dictionary

BAE, SPORK, and ZONKEY
join over 500 new words
added to the Seventh Edition.
Learn More »

Join Us

Merriam-Webster
on Twitter »

Merriam-Webster
on Facebook »

Merriam-Webster Shop

Dictionaries, thesauruses, and new reference books for kids. See all »

Other Merriam-Webster Dictionaries

Merriam-Webster.com » Webster's Unabridged Dictionary » Nglish - Spanish-English Translation »

Browse the SCRABBLE^® Dictionary

^® 2026 Merriam-Webster, Incorporated