This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Conniving; crafty.

adj. Showing or exercising forethought.

v. Present participle of design.

adj. Intriguing; artful; scheming.

n. The act of making designs or sketches; the act of forming designs or plans.

Artful; insidious; intriguing; contriving schemes.

Synonyms Wily, cunning, crafty, tricky, sly.

adj. concealing crafty designs for advancing your own interest

n. the act of working out the form of something (as by making a sketch or outline or plan)

"Of course, there are still some tough technical challenges in designing the overlay hierarchy."

artful   

intriguing    artful    scheming   

design   

affining    aligning    assigning    brining    combining    confining    declining    defining    dining    divining