artful has 1 distinct synonym spread across 1 of its 2 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is artless.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
not straightforward or candid; giving a false appearance of frankness
“an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time”
marked by skill in achieving a desired end especially with cunning or craft
“the artful dodger”
Synonyms, antonyms and the broader and narrower relations for artful come from Princeton University’s WordNet. Full sources and licences.