Double-tongued and Lying

Double-tongued adjective - Marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another.

Lying and double-tongued are semantically related. In some cases you can use "Lying" instead an adjective phrase "Double-tongued".

Lying adjective - Telling or containing lies.

Double-tongued and lying are semantically related. Sometimes you can replace phrase "Double-tongued" with "Lying", this terms are similar.