Sly·ly, adv. In a sly manner; shrewdly; craftily.
     Honestly and slyly he it spent.   --Chaucer.
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  slyly
       adv : in an artful manner; "he craftily arranged to be there when
             the decision was announced"; "had ever circumstances
             conspired so cunningly?" [syn: craftily, cunningly,
              foxily, knavishly, trickily, artfully]