disingenuous
1. [ adjective ] not straightforward or candid; giving a false appearance of frankness
Synonyms: artful
Examples:

"an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time"- David Cannadine "a disingenuous excuse"

Related terms: ingenuous distorted insincere
Similar spelling:   disingenuously
  dizziness
  digenesis
  diakinesis