guileful, gileful, guyle full, gyleful

[Eng. guile; -ful ( 1 ).] Wily, crafty, deceitful, treacherous; full of guile or craft. "To whom the guileful tempter thus replied." Milton: P. L., ix. 567. guile-fül-ly, *gile-ful-1, *gyle-ful-li, adv . [Eng. guileful ; -ly .] In a guileful, treacherous, crafty, or deceitful manner; deceitfully. "To whom the tempter guilefully replied." Milton: P. L. , ix. 655. guile'-fül-ne , s . [Eng. quileful ; -ne .] The quality or state of being guileful; treachery, du plicity, deceit, craft.