(adj) concealing crafty designs for advancing your own interest; - W.Churchill, Syn. scheming, Example:a selfish and designing nation obsessed with the dark schemes of European intrigue; a scheming wife; a scheming gold digger
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
[いしょうさんたん, ishousantan] (n) taxing one's ingenuity in devising something; agonizing over designing or creating something; making strenuous efforts to devise good ways and means to do something