Untrue, false, lying.

Lying, false.

Of a person or his speech: Uttering or expressing what is untrue; mendacious. (In false prophet the sense varies between this and A. 13b).

Not truthful or true.

Untruthful, false.

Untruthful, false, mendacious. Obsolete.

given to falsehood.

Originally Scottish. Of a person: making, or disposed to make, untrue statements; untruthful, mendacious. Also in extended use.

Of a person, his lips, etc.: That tells lies.

That fables, in senses of the verb; that invents or relates fables; addicted to fable, romancing; in bad sense, mendacious.

That forges, in senses of the verb.

Lying, untruthful; false.

Untruthful; false.

colloquial. That tells lies; lying, mendacious. Now rare.

(un-, prefix1 affix 1.)

Tending to fabricate.

Not truthful; untrue.

Suggesting as true what is really false; falsehood-telling.

Lying.

Untruthful.