Difference between Artful and Knavish

ARTFUL vs KNAVISH: ADJECTIVE

Not straightforward or candid; giving a false appearance of frankness
Exhibiting art or skill.
Skillful in accomplishing a purpose, especially by the use of cunning or craft.
Artificial.
Marked by skill in achieving a desired end especially with cunning or craft
Using or exhibiting much art, skill, or contrivance; dexterous; skillful.
Cunning; disposed to cunning indirectness of dealing; crafty. [The usual sense.]
Artificial; imitative.

Marked by skill in deception
Like or characteristic of a knave{3}; given to knavery; trickish; fraudulent; dishonest; villainous.
Mischievous; roguish; waggish; rascally.
Having the characteristics of a knave; mischievous, roguish, waggish, rascally or impertinent

Not straightforward or candid
Done with or characterized by art or skill.
Artificial, as opposed to natural; produced or producing by art: as, “too artful a writer,” Dryden, Life of Virgil.
Skilful, Of persons, skilful in adapting means to ends; adroit.
Synonyms Cunning, Artful, Sly, etc. (see cunning), deceitful, politic, shifty, insidious.
Cunning; crafty; practising or characterized by art or stratagem: as, “the Artful Dodger,” Dickens, Oliver Twist.
Of things, skilfully adapted; ingenious; clever.

Synonyms Trickish, rascally, unprincipled.
Roguish; waggish; mischievous.
Like a knave; suited to a knave; tricky; dishonest; fraudulent: as, a knavish fellow; a knavish trick.

Twisted, Manipulative, Tricky, Cute, Wily, Byzantine, Slick, Guileful, Cunning, Sly, Tricksy, Crafty, Adroit, Ingenious, Clever

Rascally, Mischievous, Devious, Roguish, Tricky, Slick, Artful, Tricksy, Dodgy, Crafty, Wily, Foxy, Guileful, Sly, Cunning

Twisted, Manipulative, Tricky, Cute, Wily, Byzantine, Slick, Guileful, Cunning, Sly, Tricksy, Crafty, Adroit, Ingenious, Clever

Rascally, Mischievous, Devious, Roguish, Tricky, Slick, Artful, Tricksy, Dodgy, Crafty, Wily, Foxy, Guileful, Sly, Cunning

Katherine was capturing real moments and making them artful.
Artful Aardvark for free on torrent or direct links.
She pours in concentration over her artful letter.
Based on with a solid oak artful arrangement.
Just installed it now on Artful, works fine.
Have fun doing artful things over Spring Break!
The best hypnosis is artful, colourful and respectful.
An artful floral arrangement can convey any feeling.
Artful Things - Artful Things - Artistic materials, oils, acrylics, brushes, canvases, etc.
The Artful DetectiveThe Artful Detective: canceled or renewed?.

If he should be detected in any knavish pranks I will make the country too warm for him to remain in.
If they choose knaves, they will have knavish ones.
Roman, a name which amongst us denotes whatever is base, cowardly, sordid, depraved, and knavish.