Synonyms and related words :
apparently sound, artful, calculating, casuistic, clever, colorable, contriving, crafty, cunning, deceitful, deceptive, designing, devious, dishonest, double-dealing, duplicitous, empty, fallacious, FALSE, falsehearted, feigned, forsworn, foxy, guileful, hollow, hypocritical, illusive, indirect, insidious, insincere, jesuitic, left-handed, mealymouthed, oblique, overrefined, oversubtle, perjured, philosophistic, plausible, plotting, scheming, shifty, slick, sly, smooth, sophistic, sophistical, specious, tongue in cheek, tricky, two-faced, uncandid, underhanded, unfrank, unserious, unsincere, untruthful, wily,