Adjective duplicitous has 1 sense

• duplicitous(s = adj.all) ambidextrous, deceitful, double-dealing, double-faced, double-tongued, janus-faced, two-faced - marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another; "she was a deceitful scheming little thing"; "a double-dealing double agent"; "a double-faced infernal traitor and schemer"
Derived forms noun duplicity₂, noun duplicity₁