[1] : The Collaborative International Dictionary of English v.0.48

sly \sly\, a. compar. slieror slyer; superl. sliest or
   slyest. oe. sli, slegh, sleih, icel. sl?gr, for sl?gr;
   akin to sw. slug, dan. slu, lg. slou, g. schlau; probably to
   e. slay, v.t.; cf. g. verschlagen sly. see slay, v. t., and
   cf. sleight.
   1. dexterous in performing an action, so as to escape notice;
      nimble; skillful; cautious; shrewd; knowing; -- in a good
      sense.
      1913 webster

            be ye sly as serpents, and simple as doves. --wyclif
                                                  matt. x. 16.
      1913 webster

            whom graver age
            and long experience hath made wise and sly.
                                                  --fairfax.
      1913 webster

   2. artfully cunning; secretly mischievous; wily.
      1913 webster

            for my sly wiles and subtle craftiness,
            the litle of the kingdom i possess.   --spenser.
      1913 webster

   3. done with, and marked by, artful and dexterous secrecy;
      subtle; as, a sly trick.
      1913 webster

            envy works in a sly and imperceptible manner. --i.
                                                  watts.
      1913 webster

   4. light or delicate; slight; thin. obs.
      1913 webster

   by the sly, or on the sly, in a sly or secret manner.
      colloq. "gazed on hetty's charms by the sly." --g.
      eliot.

   sly goose zool., the common sheldrake; -- so named from
      its craftiness.
      1913 webster

   syn: cunning; crafty; subtile; wily. see cunning.
        1913 webster
see also:
slier slyer sliest slyest slay sleight 
by the sly on the sly sly goose cunning 

[2] : The Collaborative International Dictionary of English v.0.48

sly \sly\, adv.
   slyly. obs. or poetic --spenser.
   1913 webster

[3] : WordNet (r) 2.0

sly
     adj : marked by skill in deception; "cunning men often pass for
           wise"; "deep political machinations"; "a foxy scheme";
           "a slick evasive answer"; "sly as a fox"; "tricky dik";
           "a wily old attorney" syn: crafty, cunning, dodgy,
            foxy, guileful, knavish, slick, tricksy, tricky,
            wily
     also: slyest, slyer, sliest, slier
see also:
crafty cunning dodgy foxy guileful knavish 
slick tricksy tricky wily slyest 
slyer sliest slier 

[4] : Moby Thesaurus II by Grady Ward, 1.0

98 moby thesaurus words for "sly":
   byzantine, machiavellian, machiavellic, acute, adroit, arch,
   artful, astute, back-door, backstairs, cagey, calculating, canny,
   clandestine, clever, covert, crafty, creep, crooked, cunning, cute,
   deceitful, deep, deep-laid, designing, devious, dexterous,
   diplomatic, dishonest, disingenuous, downy, feline, foxy, furtive,
   guileful, gumshoe, hidlings, hole-and-corner, hugger-mugger,
   ingenious, insidious, inventive, knowing, lurk, masterful, pawky,
   politic, predatory, privy, quiet, ready, resourceful, scheming,
   serpentine, shady, sharp, shifty, shrewd, skulk, skulking, slick,
   slide, slim, slink, slinking, slinky, slippery, smart, smooth,
   snake, snaky, sneaking, sneaky, snook, sophistical, steal,
   stealthy, strategic, subtile, subtle, supple, surreptitious,
   tactical, trickish, tricksy, tricky, under-the-counter,
   under-the-table, undercover, underground, underhand, underhanded,
   unfrank, unobtrusive, unscrupulous, vulpine, wary, wily

Web site for the [SLYFAMSTONE.COM] domain name under construction!
... ..
http://www.slyfamstone.com/, score=100, date indexed=December 29, 2005, 8:08 pm

BACKSTAGE: Sly and the Family Stone Official Site ::: Official site of Sly and ...
...Sly on KSOL, San Francisco, March 29, 1967 Reel Radio; scroll down ... Sly Stone "Higher" and "Different Strokes" remix in Starbucks stores ... ..
http://www.slystone.com/, score=98, date indexed=December 29, 2005, 10:12 pm

Sly and Robbie Riddim Twins Unofficial Website
...Sly & Robbie ... ..
http://slyrob.3va.net/, score=98, date indexed=December 30, 2005, 2:33 am

Sly Fox Beer
...Sly Fox Beer creates uniquely balanced beers from two locations in ... ..
http://www.slyfoxbrew.com/, score=96, date indexed=December 30, 2005, 11:43 am

Sly and the Family Stone
... ..
http://www.slystonemusic.com/, score=93, date indexed=December 30, 2005, 11:39 am

THERE - The Virtual Destination
...Sly's offer to sit in on the latter was turned down, the song did not ... In 1979, Sly once again put out signals of reform with the release of ... ..
http://www.there1.com/sly.html, score=93, date indexed=December 29, 2005, 7:24 pm

SLY electronic Online Store - Herzlich willkommen in unserem Online-Store
...Copyright © 2004 SLY electronic. Alle Rechte vorbehalten / All rights ... SLY electronic Ing. Peter Haenel Erich-Weinert-Straße 139-141 / 10409 ... ..
http://www.sly.de/, score=90, date indexed=January 20, 2006, 12:28 am

Sly Fox Quarter Horses Main Page
... ..
http://www.slyfoxhorses.com/, score=86, date indexed=December 30, 2005, 12:22 pm

home | mu-sly - bleeps & electronic musical shenanigans
...Mu-Sly version 3 is being worked on in dribs and drabs between other ... Home. You've found your way to Mu-Sly - the homepage of Dave Silvester ... ..
http://www.mu-sly.co.uk/, score=84, date indexed=December 30, 2005, 2:24 pm

... ..
http://www.sly.fi/, score=72, date indexed=December 30, 2005, 1:33 am

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