Deceitfully
/dɪˈsiːtf(ə)li/
"Deceitfully" in a Sentence (2 examples)
The sons of Jacob answered Sichem and his father deceitfully, being enraged at the deflowering of their sister: We cannot do what you demand, nor give our sister to one that is uncircumcised; which with us is unlawful and abominable.
And he said: Thy brother came deceitfully and got thy blessing.