Adverb
With intent to deceive.
Source: Webster's dictionaryThose who reveal information the law makes it a crime to reveal, when doing so is the only way to demonstrate to the public that powerful officials are acting wrongfully or deceitfully. Glenn Greenwald
Most Christians are still living with an Old Testament view of their heart. Jeremiah 17:9 says, 'My heart is deceitfully wicked.' No, it's not. Not after the work of Christ, because the promise of the new covenant is a new heart. John Eldredge
Science reveals where religion conceals. Where religion purports to explain, it actually resorts to tautology. To assert that "God did it" is no more than an admission of ignorance dressed deceitfully as an explanation. Peter Atkins
he acted dishonestly when he gave the contract to his best friend Source: Internet
This Margaret Sanger—the real Margaret Sanger—is completely whitewashed in Parenthood propaganda, which deceitfully portrays Sanger as a champion of reproductive “choice.” Source: Internet
Jones stated that minutes after the disaster, Duckenfield "deceitfully and dishonestly" told senior FA officials that the supporters had forced the gate open. Source: Internet