The Open Dictionary

deceitfulness

noun

UK/dɪˈsiːt.fᵊl.nəs/
US/dɪˈsiːt.fᵊl.nəs/

Definitions of deceitfulness noun

  1. Uncountable

    The act of intentionally concealing the truth, often to gain an advantage or mislead others.

    • His actions were entirely driven by deceitfulness, lacking any sincerity.

    • She used her deceitfulness to manipulate others.

    • The company's advertising was full of deceitfulness, misleading consumers.