From The Collaborative International Dictionary of English v.0.48:
Skillful \Skill"ful\, a. [Written also skilful.]
1. Discerning; reasonable; judicious; cunning. [Obs.] "Of
skillful judgment." --Chaucer.
[1913 Webster]
2. Possessed of, or displaying, skill; knowing and ready;
expert; well-versed; able in management; as, a skillful
mechanic; -- often followed by at, in, or of; as, skillful
at the organ; skillful in drawing.
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And they shall call the husbandman to mourning, and
such as are skillful of lamentations to wailing.
--Amos v. 16.
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Syn: Expert; skilled; dexterous; adept; masterly; adroit;
clever; cunning.
[1913 Webster] -- Skill"ful*ly, adv. --
Skill"ful*ness, n.
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