świadome kłamstwo

Shame on you for telling a deliberate lie like that.

He hesitated only an instant before telling his first deliberate lie.

"You set the boy to writing deliberate lies because you could not write them yourself?"

She did not know what she would do if forced to tell a deliberate lie.

That was a deliberate lie, and I demand an explanation!

But what about using a deliberate lie to attack an opponent?

On a very basic level, a deliberate lie is opposed to a simple truth.

So you told a deliberate lie, and that made everything else about you suspect.

A deliberate lie by one or the other would have to be involved.

This is either a deliberate lie, or else they haven't read the Treaty.