名詞 double dealing:

1. acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another
   同義詞：duplicity, double-dealing

形容詞 double dealing:

1. marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another- W.M.Thackeray
   同義詞：ambidextrous, deceitful, double-dealing, duplicitous, Janus-faced, two-faced, double-faced, double-tongued