1. (a.) Lacking in candor or frankness; giving a false appearance of being frank or open; misleading; as a disingenuous compliment\; uncandid; unworthily or meanly artful.

2. (a.) Not noble; unbecoming true honor or dignity; mean; unworthy; as, disingenuous conduct or schemes.

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